some EF info

[b]Differences in the USDM EF Civic + the JDM SiR[/b]

Theres alot of differences from the JDM to the USDM market. Rangeing from the obvious rhd to the  unnoticable amber tinted clock. On the outside the EF9s (sir) came with rocker moldings and the mudflaps had indents so they'd fit the trim. The mouldings and bumpers more resemble those on the 88-89 civis due to the indent in the center. Out back the taillights are different with the center garnish saying civic vtec, civic special edition, or the very rare indiglo civic logo. the wing had a longer led and the bumper came with a rear lip and optional red fogs. Up front, the fenders came with side markers. The hood is the opposite of here, the center  is higher than the sides for clearance of the B16a. The headlights only have one bulb rather than 2. They are the h4h bulbs. The corner lights are also clear. The front bumper came with wrap arond bumper lights and optional bumper pole, circle foglights, or rectangular fogs. It came with a front lip slightly larger than the Si lip. The mirrors fold in towards the car for tight parking but these where also optional and the door came with the infamous "DOHC VTEC" decal. On the inside it came with power locks and windows, power sunroof, optional armrest, rear seats with headrests, leather steering wheel, and lower center console. The climate controls where also digital.





*imgs from passwordjdm.com website
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[b]JDM + USDM Chassis Codes[/b]

Code  Market  Motor   Model        Stlye  

ED6    USDM   D15B1  STD          Hatch  
ED6    USDM   D15B2  DX           Hatch  
ED7    USDM   D16A6  Si           Hatch  
ED3    USDM   D15B2  DX           Sedan  
ED3    USDM   D15B2  LX           Sedan  
ED4    USDM   D16A6  EX           Sedan  
ED8    USDM   D15B6  HF           CRX  
ED8    USDM   D15B2  DX           CRX  
ED9    USDM   D16A6  Si           CRX  
EF1     JDM     D13B    23L/U        Hatch  
EF2     JDM     D15B    25R/X/XT     Hatch  
EF3     JDM     ZC      Si           Hatch  
EF9     JDM     B16A    SiR          Hatch  
EF1     JDM     D13B    33U          Sedan  
EF2     JDM     D15B    35U          Sedan  
EF2     JDM     D15B    35M/X/XT     Sedan  
EF3     JDM     S ZC    36i Limited  Sedan  
EF3     JDM     ZC      Si           Sedan  
EF5     JDM     S ZC    RTi-J        Sedan  
EF6     JDM     D15B    1.5X         CRX  
EF7     JDM     ZC      Si           CRX  
EF8     JDM     B16A    SiR          CRX  
EF4     JDM     ?       ?            Wagon
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[b]JDM + USDM Motor HP[/b]

D13b (JDM) 81hp
D15b (JDM) 90hp
D15b1 70hp
D15b2 92hp
D15b6 62hp
D16A6 107hp
SOHC ZC (JDM) 118
DOHC ZC (JDM) 128
B16A (JDM) 160hp
B16A1 (EDM) 150hp
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[b]Model Info[/b]

[b]4th Gen Info [/b]
The fourth generation Civic ran from September 1987 until September 1991. In that time there where alot of different models and engines available in the European, Japanese, and American market. This was an complexed car. It was one of the first cars to have Vtec. The car's suspension was a double wishbone setup and the top models where equiped with rear disc brakes.

[b]Motors [/b]
Through all 3 of the markets there are a total of 20 engines. These engines came in a variety including single and dual carbed, and dual point and multi point fuel injection. The base models where the 1.2 SOHC single carborated for the JDM market. The EDM base model was the 1.3 SOHC single carbed. For the American market it is the 1.5 dpfi SOHC which came in the Standard which is the base model and the Dx. Following the 1.5 is the 1.6 SOHC which was available in the European as a 1.6i and American market in the Si. After the 1.6 SOHC came the 1.6 DOHC ZC motor. This was in the JDM Si. The infamous B16a came in the Japanese top model hatchback SiR starting in 1989. There where 2 models, the SiR and the SiRII. The SiR is the base model with front and rear disc brakes and double wishbone suspension. The car came factory with front and rear anti-roll bars, ac, and an optional LSD. The SiRII's features added ABS brakes, a sunroof, powered windows and mirrors, among other things. This had 160 hp. A variation of this motor, the B16a1, came in the 1.6i-VT in Europe.

[b]USDM Body [/b]
There are some differences in the 88-89 model Civic hatch and the 90-91 model. For starters they got rid of the smaller bumper lights and replaced them with longer, rectangular lights that where clear with orange inserts. Next where the corner lights. Honda got rid of the 2 screws on the outside of the lights. The side moldings, instead of having the dip in the center, now had a flat molding. On the inside, the seatbelts became door mounted, the pouches on the door where done away with, and the shape of the cluster cover was changed.
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[b]Weights of EFs, motors, + trannys [/b]

Civic
1988 Honda Civic DX SDN MT 2039
1988 Honda Civic LX SDN MT 2138
1988 Honda Civic DX HB MT 1993
1988 Honda Civic HB MT 1933
1989 Honda Civic DX SDN MT 2147
1989 Honda Civic LX SDN MT 2211
1989 Honda Civic HB MT 2013
1989 Honda Civic DX HB MT 2088
1990 Honda Civic DX SDN MT 2262
1990 Honda Civic LX SDN MT 2322
1990 Honda Civic EX SDN MT 2374
1990 Honda Civic Si HB MT 2291
1990 Honda Civic HB MT 2127
1990 Honda Civic DX HB MT 2165
1991 Honda Civic DX SDN MT 2262
1991 Honda Civic LX SDN MT 2322
1991 Honda Civic EX SDN MT 2374
1991 Honda Civic DX HB MT 2165
1991 Honda Civic Si HB MT 2291
1991 Honda Civic HB MT 2127

CRX
1988 Honda CRX Si MT 2017
1988 Honda CRX DX MT 1922
1988 Honda CRX HF MT 1819
1989 Honda CRX Si MT 2138
1989 Honda CRX DX MT 2048
1989 Honda CRX HF MT 1834
1990 Honda CRX Si MT 2174
1990 Honda CRX DX MT 2103
1990 Honda CRX HF MT 1967
1991 Honda CRX DX MT 2103
1991 Honda CRX HF MT 1967
1991 Honda CRX Si MT 2174

Motors
D15B1 - 195lbs dry - 212lbs wet
D15B2 - 208lbs dry - 225lbs wet
D16A6 - 219lbs dry - 236lbs wet
DOHC ZC - 232lbs dry - 249lbs wet
B16A - 291lbs dry - 309lbs wet

Transmissions
Si L3 transmission - 63 lbs
B16a Trannies - 80 sumthin
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[b]EF ecu error codes [/b]

EF Ecu Trouble Codes
Reading EF ecu Trouble codes
Reading them's pretty simple. When there is a long flash this indicates tens and a short flash indicates ones.

For example:     Flaaaaaash Flaaaaaash Flash = code 21
                           Flaaaaaash Flash = code 11
                           Flash Flash = code 2

1) Primary oxygen sensor- Defective circuit or unplugged/ Defective sensor
2) Oxygen sensor "B" - Defective circiut or unplugged/ Defective sensor
3) MAP (Manifold Absolute Pressure) Sensor - Defective circuit or unplugged/ Sensor
4) CKP (Crankshaft Position Sensor) - Defective circuit or unplugged/ Defective sensor
5) MAP (Manifold Absolute Pressure) sensor -Mechanical problem/ Disconnected piping
6) ECT ( Engine Coolant Temperature) Sensor- Defective circuit or unplugged/ Sensor
7) TP (Throttle Position) Sensor -Defective circuit or unplugged/ Defective sensor
TDC (Top Dead Centre) Sensor -Defective circuit or unplugged/ Defective sensor
9) CYP (Cylinder) - Defective circuit or unplugged/ Defective sensor
10) IAT (Intake Air Temperature)sensor- Defective circuit or unplugged/Defective sensor
12) EGR (Exhaust Gas Recirculation) -Defective circuit or unplugged/ Defective sensor
13) Atmospheric Pressure Sensor - Defective circuit or unplugged/ Defective sensor
14) IAC (Intake Air Control) Valve- Defective circuit or unplugged / Defective sensor
15) Ignition Output Signal - Missing or defective ignition output signal
16) Fuel Injector System - Defective circuit or unplugged/ Defective fuel injector
17) VSS (Vehicle Speed Sensor) - Defective circuit or unplugged/ Defective sensor
19) Automatic transmission lockup control Solenoid Valve- Defective circuit or unplugged/ Defective solenoid. A/T Only.
20) Electronic Load Detector - Defective circuit or unplugged/ Defective sensor
21) VTEC Solenoid Valve- Defective circuit or unplugged/ Defective solenoid
22) VTEC Oil Pressure Switch - Defective circuit or unplugged/ Defective switch
23) Knock Sensor - Defective circuit or unplugged / Defective sensor
30) Automatic Transmission Signal- Defective circuit or unplugged/ Defective sensor
31) Automatic Transmission Signal "B"- Defective circuit or unplugged/ Defective sensor
41) Primary Oxygen Sensor Heater- Circiut malfunction
43) Fuel Supply System - Defective or malfunctioning Fuel Supply Sytem
45) System too lean or too rich - Malfunction in the fuel monitoring systems
48) LAF (Lean Air Fuel) sensor - Defective circuit or unplugged / Defective sensor
54) CKF (Crankshaft Speed Fluctuation) sensor- Defective circuit or unplugged / Defective sensor
61) Primary Oxygen sensor circuit- High/ Low Voltage, Or slow response
63) Secondary Oxygen Sensor circuit- High/ Low Voltage, Or slow response
67) Catalyst System Efficiency Below Threshold- Malfunctioning catalyst system
70) Automatic Transmission - Malfunction with Automatic Transmission Controls
71-74) Random misfire in Cylinders 1-4- Condition present Creating Misfire
80) EGR (Exhaust Gas Recirculation) Insufficient Flow Detected
86) ECT (Engine Coolant Temperature) Circuir Range / Performance Problem
90) Evaporative Emissions Contrlo System - Leak Detected In Fuel Tank Area
91) Fuel Tank Pressure Sensor- Low Input
92) Evaporative Emission Control System Control System- Insufficient Purge Flow