The '99 Civic Si with its B16A2 engine is a beloved enthusiast platform, but 25+ years and hard driving have taken their toll. Most survivors have been modified or beaten, making clean examples rare and problematic ones common.
2nd Gear Synchro Failure (S80 Transmission)
Common · medium severity
Typical onset: 100,000-150,000 mi
Symptoms: grinding into 2nd gear, especially during aggressive shifts, popping out of 2nd under load, complete inability to engage 2nd gear smoothly
Fix: Transmission removal and full rebuild with synchro replacement. 8-12 hours labor depending on shop familiarity. Many opt for upgraded brass synchros while it's apart.
Estimated cost: $1,800-3,200
Engine Bearing Wear from VTEC Abuse
Occasional · high severity
Typical onset: 120,000-180,000 mi
Symptoms: rod knock on cold start that quiets when warm, metallic ticking that worsens with RPM, sudden catastrophic failure with metal in oil, low oil pressure warning
Fix: Most require full engine rebuild or replacement. Rod bearings fail first, but by the time you hear knock, crank and mains often need attention too. 16-24 hours for proper rebuild with machine work.
Estimated cost: $3,500-6,000
Headgasket Failure (Overheating Damage)
Occasional · high severity
Typical onset: 80,000-140,000 mi
Symptoms: white smoke from exhaust, coolant mixing with oil (milky dipstick), overheating with no external leaks, bubbling in coolant reservoir
Fix: Head removal, surface inspection/machining, new gasket and ARP studs recommended. If caught early, 10-14 hours. If overheated severely, head may be warped beyond repair requiring replacement.
Estimated cost: $1,200-2,500
Transmission Mount Collapse
Common · low severity
Typical onset: 60,000-100,000 mi
Symptoms: severe engine movement during launches, clunking when engaging 1st or reverse, vibration at idle that disappears at speed, shifter slop and vague engagement
Fix: Replace all motor mounts while you're at it, but the rear transmission mount fails first. 2-3 hours labor for all mounts.
Estimated cost: $350-650
VTEC Solenoid Gasket and Spool Valve Issues
Occasional · medium severity
Typical onset: 100,000+ mi
Symptoms: check engine light with P1259 code (VTEC malfunction), loss of power above 5800 RPM, oil weeping from VTEC solenoid area, intermittent VTEC engagement
Fix: Replace solenoid gasket and spool valve screen. Often just clogged with sludge from infrequent oil changes. 1-2 hours labor, but diagnostic time can add up.
Estimated cost: $200-450
Distributor Internal Seal Oil Leak
Common · medium severity
Typical onset: 80,000+ mi
Symptoms: oil pooling in distributor cap causing misfires, hard starting in damp weather, intermittent stalling, oil visible on distributor body
Fix: Replace distributor O-ring seal or entire distributor if internal components worn. Many techs just replace the whole unit. 1.5-2 hours labor.
Estimated cost: $250-550
Rust in Rear Shock Towers and Quarter Panels
Common · medium severity
Symptoms: visible rust bubbling behind rear wheels, shock tower perforation visible from trunk, sagging rear suspension, failed state inspection in rust-belt states
Fix: Structural rust repair requires cutting out cancer and welding in new metal. 8-16 hours depending on extent. Many cars are totaled at this point due to cost vs value.
Estimated cost: $1,500-4,000
Owner tips
Change oil every 3,000 miles religiously — these engines live at high RPM and need clean oil
Check transmission fluid condition annually; if it's dark or smells burnt, you're already behind
Inspect underneath for rust early and often, especially rear subframe and shock towers
Compression test before purchase — many have been money-shifted or over-revved into oblivion
Budget for a timing belt/water pump service immediately if no proof of recent replacement
Buy only if you can verify maintenance history and inspect for rust/abuse — clean examples are appreciating, but most have been thrashed and are money pits.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
Fitment notes: Compact size battery; located in engine bay
As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.
Every control module on the 1996-2000 Honda Civic Si — where it lives, replacement time, and what it takes to program a replacement. Modules marked dealer / factory tool won't work after a part swap alone — budget for programming.
Gauge Control Module (Gauge)1.2 hr R&Rno coding
📍 Behind instrument panel
⚠️ Mileage stored in module, cannot be transferred
Anti-Lock Brake System Control Unit (ABS)1.2 hr R&Rrelearn only +0.2 hr▸ programming details
📍 Under hood, driver side firewall
🔧 Honda HDS or scan tool
⚠️ Brake bleeding and system initialization required
Audio Unit (Radio)0.5 hr R&Rrelearn only +0.1 hr▸ programming details
📍 Center dash
🔧 Radio code card
⚠️ Anti-theft code entry required via preset buttons
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.
AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR MODULE · 20V026000
2020-01-17 · EQ19002
Honda (American Honda Motor Co.) is recalling certain 1998 Acura 2.2CL, 1998-1999 Acura 2.3CL, 1998-1999 Acura 3.0CL, 2001 Acura 3.2CL and Acura MDX, 1998-2000 Honda Accord Coupe, Accord Sedan, Civic Sedan, Odyssey and Acura 3.5RL, 1999-2000 Acura 3.2TL, 1996-2000 Civic Coupe, 1997-2000 CR-V, 1997-1998 EV Plus, and 1998-1999 Isuzu Oasis vehicles.
These vehicles were equipped with Non-Azide Driver air bag Inflators (NADI) and do not contain phase stabilized ammonium nitrate (PSAN) propellant. Due to a manufacturing issue, the NADI inflators may absorb moisture, causing the inflators to rupture or the air bag cushion to underinflate.
Consequence: In the event of a crash necessitating air bag deployment, an inflator rupture may result in metal fragments striking the driver or other occupants. An underinflated air bag cushion may not properly protect the occupant. These scenarios increase the risk of serious injury or death.
Remedy: Honda will notify owners, and dealers will inspect the driver frontal air bag inflator, and replace it if necessary, with an inflator of a different design, free of charge. The recall began October 1, 2020. Owners may contact American Honda's Customer Support & Campaign Center at 1-888-234-2138 or Isuzu customer service at 1-800-255-6727.
EXTERIOR LIGHTING:HEADLIGHTS · 09E025000
2009-05-11
DOPE, INC. IS RECALLING 42,540 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THESE LAMPS DO NOT CONTAIN THE REQUIRED AMBER SIDE REFLECTORS.
Consequence: DECREASED LIGHTING VISIBILITY MAY RESULT IN A VEHICLE CRASH.
Remedy: DOPE, INC. WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE SAFETY RECALL BEGAN ON JULY 28, 2009. OWNERS MAY CONTACT DOPE, INC. AT 1-626-272-1798.
EXTERIOR LIGHTING · 09E012000
2009-04-07
SABERSPORT IS RECALLING 16,270 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THESE LAMPS DO NOT CONTAIN THE REQUIRED AMBER SIDE REFLECTORS.
Consequence: DECREASED LIGHTING VISIBILITY MAY RESULT IN A VEHICLE CRASH.
Remedy: SABERSPORT WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE SAFETY RECALL BEGAN ON MAY 11, 2009. OWNERS MAY CONTACT SABERSPORT AT 1-909-598-7589.
EXTERIOR LIGHTING:HEADLIGHTS · 08E050000
2008-08-11
K2 MOTOR IS RECALLING 1,921 AFTERMARKET HEADLAMPS OF VARIOUS MODELS SOLD FOR USE ON THE ABOVE LISTED VEHICLES. THESE HEADLAMPS ARE MISSING THE AMBER SIDE REFLEX REFLECTOR WHICH FAILS TO CONFORM WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT."
Consequence: WITHOUT THE AMBER SIDE REFLEX REFLECTORS, THE LIGHTING VISIBILITY MAY BE AFFECTED, POSSIBLY RESULTING IN A VEHICLE CRASH.
Remedy: K2 MOTOR WILL NOTIFY OWNERS AND OFFER A FULL REFUND. THE RECALL BEGAN ON DECEMEBER 17, 2008. OWNERS MAY CONTACT K2 MOTOR AT 1-909-839-2992.
ON CERTAIN COMPRESSED NATURAL GAS (CNG) VEHICLES, IN THE EVENT OF A SEVERE INTERIOR FIRE IN THE AREA OF THE REAR SEAT, THE CNG TANK MAY BE HEATED UNEVENLY, PREVENTING THE PRESSURE RELIEF DEVICE FROM VENTING THE CONTENTS OF THE TANK AS DESIGNED.
Consequence: THIS COULD RESULT IN A TANK RUPTURE, EXPLOSION, AND EJECTION OF THE TANK FROM THE VEHICLE.
Remedy: DEALERS WILL INSTALL A HEAT INSULATOR MATERIAL TO THE REAR SEAT BACK. AN INTERIM OWNER LETTER WAS MAILED TO OWNERS BEGINNING NOVEMBER 26, 2007. WHEN PARTS ARE AVAILABLE, OWNERS WILL BE RENOTIFIED ASKING THEM TO BRING IN THEIR VEHICLE FOR REPAIR. OWNERS MAY CONTACT HONDA AT 1-800-999-1009.
EXTERIOR LIGHTING · 06E064000
2006-07-17
CERTAIN TRADESONIC COMBINATION LAMPS SOLD AS REPLACEMENT LAMPS FOR USE ON THE ABOVE LISTED PASSENGER VEHICLES. COMBINATION LAMPS NOT EQUIPPED WITH AMBER SIDE REFLECTORS FAIL TO CONFORM WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT.
Consequence: LACK OF AMBER SIDE REFLECTORS IN THE LAMPS WILL DECREASE LIGHTING VISIBILITY TO OTHER DRIVERS AND MAY POSSIBLY RESULT IN A VEHICLE CRASH.
Remedy: TRADESONIC WILL NOTIFY OWNERS AND REPLACE THE LAMPS FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN DURING JULY 2006. OWNERS MAY CONTACT TRADESONIC AT 626-934-8884.
EXTERIOR LIGHTING · 06E060000
2006-06-29
CERTAIN AAI MOTORSPORTS COMBINATION LAMPS SOLD AS REPLACEMENT LAMPS FOR USE ON THE ABOVE LIST PASSENGER VEHICLES. COMBINATION LAMPS NOT EQUIPPED WITH AMBER SIDE REFLECTORS FAIL TO CONFORM WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT."
Consequence: LACK OF AMBER SIDE REFLECTORS IN THE LAMPS WILL DECREASE LIGHTING VISIBILITY TO OTHER DRIVERS AND MAY POSSIBLY RESULT IN A VEHICLE CRASH
Remedy: AAI MOTORSPORTS WILL NOTIFY OWNERS AND REPLACE THE LAMPS FREE OF CHARGE. THE RECALL BEGAN ON AUGUST 1, 2006. OWNERS MAY CONTACT AAI MOTORSPORTS AT 909-923-9188.
EXTERIOR LIGHTING · 06E049000
2006-05-24
CERTAIN CK MOTORSPORTS COMBINATION HEADLIGHTS, CLEAR CORNER, BUMPER, AND SIDE MARKER LIGHTS SOLD AS REPLACEMENT LAMPS FOR USE ON THE PASSENGER VEHICLES LISTED ABOVE. SOME COMBINATION LAMPS THAT ARE NOT EQUIPPED WITH AMBER SIDE REFLECTORS FAIL TO CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT.
Consequence: WITHOUT THE AMBER REFLECTORS, THE VEHICLE WILL BE POORLY ILLUMINATED, POSSIBLY RESULTING IN A VEHICLE CRASH WITHOUT WARNING.
Remedy: CK MOTORSPORT WILL NOTIFY OWNERS AND REPLACE THE NONCOMPLIANT LAMPS FREE OF CHARGE. THE RECALL BEGAN ON JULY 1, 2006. OWNERS MAY CONTACT CK MOTORSPORT AT 1-909-610-7211.
EXTERIOR LIGHTING · 06E044000
2006-05-22
CERTAIN J & A AUTO ACCESSORIES COMBINATION HEADLAMPS SOLD AS REPLACEMENT LAMPS FOR USE ON THE ABOVE LISTED PASSENGER VEHICLES. SOME COMBINATION LAMPS THAT ARE NOT EQUIPPED WITH AMBER SIDE REFLECTORS FAIL TO CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT.
Consequence: WITHOUT THE AMBER REFLECTORS, THE VEHICLE WILL BE POORLY ILLUMINATED, POSSIBLY RESULTING IN A VEHICLE CRASH WITHOUT WARNING.
Remedy: J & A AUTO ACCESSORIES WILL NOTIFY OWNERS AND OFFER TO REPURCHASE THE HEADLAMPS. THE RECALL BEGAN ON JULY 10, 2006. OWNERS MAY CONTACT J & A AUTO ACCESSORIES AT 310-327-4981.
EXTERIOR LIGHTING · 06E040000
2006-05-15
CERTAIN E SPEED RACING COMBINATION LAMPS SOLD AS REPLACEMENT EQUIPMENT FOR USE ON CERTAIN PASSENGER VEHICLES LISTED ABOVE. SOME COMBINATION LAMPS THAT ARE NOT EQUIPPED WITH AMBER SIDE REFLECTORS FAIL TO CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT.
Consequence: WITHOUT THE AMBER REFLECTORS, THE VEHICLE WILL BE POORLY ILLUMINATED, POSSIBLY RESULTING IN A VEHICLE CRASH WITHOUT WARNING.
Remedy: E SPEED RACING WILL NOTIFY OWNERS AND OFFER TO REPURCHASE THE LAMPS. THE RECALL BEGAN MAY 10, 2006. OWNERS MAY CONTACT E SPEED RACING 909-923-3636.
EXTERIOR LIGHTING · 06E032000
2006-04-18
CERTAIN EAGLE EYES AND SONAR HEADLIGHTS AND CORNER LIGHTS SOLD AS AFTERMARKET FOR USE ON 1988-2005 HONDA CIVIC, 1990-2005 HONDA ACCORD, AND 1990-2001 ACURA INTEGRA PASSENGER VEHICLES LISTED ABOVE. HEADLIGHTS AND CORNER LIGHTS THAT ARE NOT EQUIPPED WITH AMBER SIDE REFLECTORS FAIL TO CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT.
Consequence: WITHOUT THE AMBER REFLECTORS, THE VEHICLE WILL BE POORLY ILLUMINATED, POSSIBLY RESULTING IN A VEHICLE CRASH WITHOUT WARNING.
Remedy: TOM MOTORSPORT WILL NOTIFY OWNERS AND OFFER REIMBURSEMENT FOR THE PURCHASE OF NONCOMPLIANT LIGHTS. THE RECALL BEGAN APRIL 17, 2006. OWNERS MAY CONTACT TOM MOTORSPORT AT 626-968-4007.
EXTERIOR LIGHTING · 06E026000
2006-03-23
CERTAIN PRO-A MOTORS CORNER LAMPS, TURN SIGNALS, AND HEADLIGHTS SOLD AS REPLACEMENT LAMPS FOR USE ON CERTAIN PASSENGER VEHICLES LISTED ABOVE. SOME COMBINATION LAMPS THAT ARE NOT EQUIPPED WITH AMBER SIDE REFLECTORS FAIL TO CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT.
Consequence: WITHOUT THE AMBER REFLECTORS, THE VEHICLE WILL BE POORLY ILLUMINATED, POSSIBLY RESULTING IN A VEHICLE CRASH WITHOUT WARNING.
Remedy: PRO-A MOTORS WILL NOTIFY OWNERS AND OFFER TO REPURCHASE THE LAMPS. THE RECALL BEGAN ON APRIL 3, 2006. OWNERS MAY CONTACT PRO-A MOTORS AT 323-838-2988.
EXTERIOR LIGHTING:HEADLIGHTS · 06E025000
2006-03-21
CERTAIN POLI-AUTO COMBINATION HEADLAMP ASSEMBLIES, P/NOS. 11-728, 11-728D, 11-710, 11-419, 11-713, 11-703, 11-704, 11-708P, 11-735, 11-725, 11-726, 11-716 (P&C), 11-721-1, 11-733, 11-729, 11-730, AND 11-732, SOLD AS REPLACEMENT LAMPS FOR USE ON CERTAIN PASSENGER VEHICLES. SOME COMBINATION LAMPS THAT ARE NOT EQUIPPED WITH AMBER SIDE REFLECTORS FAIL TO CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT."
Consequence: WITHOUT THE AMBER REFLECTORS, THE VEHICLE WILL BE POORLY ILLUMINATED, POSSIBLY RESULTING IN A VEHICLE CRASH WITHOUT WARNING.
Remedy: POLI-AUTO WILL NOTIFY OWNERS AND OFFER TO REPURCHASE THE HEADLAMPS AT ITS ORIGINAL PURCHASE PRICE. THE RECALL IS EXPECTED TO BEGIN DURING APRIL 2006. OWNERS MAY CONTACT POLI-AUTO AT 305-477-1356.
EXTERIOR LIGHTING:HEADLIGHTS · 06E023000
2006-03-13
CERTAIN ANZO COMBINATION HEADLAMP ASSEMBLIES SOLD AS REPLACEMENT LAMPS FOR USE ON CERTAIN PASSENGER VEHICLES. SOME COMBINATION LAMPS ARE NOT EQUIPPED WITH AMBER SIDE REFLECTORS WHICH FAIL TO CONFORM TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT."
Consequence: WITHOUT THE AMBER REFLECTORS, THE VEHICLE WILL BE POORLY ILLUMINATED, POSSIBLY RESULTING IN A VEHICLE CRASH.
Remedy: ANZO WILL NOTIFY OWNERS AND REPLACE THE HEADLAMPS FREE OF CHARGE. THE RECALL BEGAN MAY 9, 2006. OWNERS MAY CONTACT ANZO USA AT 909-468-3688.
ELECTRICAL SYSTEM:IGNITION:SWITCH · 02V120000
2002-05-16
ON CERTAIN SEDANS, COUPES, HATCHBACKS, AND SPORT UTILITY VEHICLES, ELECTRICAL CONTACTS IN THE IGNITION SWITCH CAN DEGRADE DUE TO THE HIGH ELECTRICAL CURRENT PASSING THROUGH THE SWITCH WHEN THE VEHICLE IS STARTED.
Consequence: WORN CONTACTS COULD CAUSE THE ENGINE TO STALL WITHOUT WARNING, INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL REPLACE THE IGNITION SWITCH. OWNER NOTIFICATION BEGAN JUNE 14, 2002. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT HONDA AT 1-800-999-1009 OR ACURA AT 1-800-382-2238.
Performance
Horsepower
160hp
Torque
111lb-ft
Wiper blades
1999 Civic Si coupe (EM1). Sedan body style. Standard hook-type arms.
Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.
Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 1999 Honda Civic Si 1.6L I4 VTEC B16 and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years.