20 Most Recent 1993 Honda Prelude - Page 3 Questions & Answers

Did the problem come on suddenly or was some previous action or work done...

1993 Honda... | Answered on Dec 02, 2011


DO NOT replace any more compoents until you have checked your vehicle's OBD computer for fault codes.

1) Run engine until it reaches operating temperature. Turn off engine.

2) Locate the 2-pin connector (BLUE I think it is) under the passenger dashboard, or behind passenger kick panel - this connector could also be mounted into an unused socket ( DO NOT use the 3-pin connector). Using a suitable jumper wire, short these 2 pins together.

3) Turn ignition to ON (but do not start)

4) The Check Engine light will flash the appropriate codes - long flash represents the 1st digit of the code, short flashes represent the 2nd digit of the code, followed by a long pause between codes. e.g. LONG, LONG, SHORT, SHORT, SHORT (long pause) = Code 23 etc.

These are the Honda codes and their meanings:

Code 0 Electronic Control Module (ECM)
Code1 Heated oxygen sensor A
Code 2 Oxygen content B
Code 3 and 5 Manifold Absolute Pressure
Code 4 Crank position sensor
Code 6 Engine coolant temperature
Code 7 Throttle position sensor
Code 8 Top dead center sensor
Code 9 No.1 cylinder position sensor
Code 10 Intake air temperature sensor
Code 11 Electronic Control Module (ECM)
Code 12 Exhaust recirculation system
Code 13 Barometric pressure sensor
Code 14 Idle air control valve or bad ECM
Code 15 Ignition output signal
Code 16 Fuel Injector
Code 17 Vehicle speed sensor
Code 19 A/T lock-up control solenoid
Code 20 Electric load detector
Code 21 V-TEC control solenoid
Code 22 V-TEC pressure solenoid
Code 23 Knock sensor
Code 30 A/T FI signal A
Code 30 A/T FI signal B
Code 41 Heated oxygen sensor heater
Code 43 Fuel supply system
Code 45 Fuel supply metering
Code 48 Heated oxygen sensor
Code 61 Front heated oxygen sensor
Code 63 Rear heated oxygen sensor
Code 65 Rear heated oxygen sensor heater
Code 67 Catalytic converter system
Code 70 Automatic transaxle
Code 71 Misfire detected cylinder 1
Code 72 Misfire detected cylinder 2
Code 73 Misfire detected cylinder 3
Code 74 Misfire detected cylinder 4
Code 75 Misfire detected cylinder 5
Code 76 Misfire detected cylinder 6
Code 80 Exhaust recirculation system
Code 86 Coolant temperature
Code 92 Evaporative emission control system

Hope this helps........

1993 Honda... | Answered on Nov 01, 2011

This is just a screen shot hope it helps

1993 Honda... | Answered on Oct 15, 2011

I have the diagram you need if you want me to send it to you. Send me your email address and I will send you the pictures and explanations on how to time it. outdoorsman592003@gmail.com

1993 Honda... | Answered on Oct 13, 2011

The most likely cause is a combination of two things. I suspect that your catalytic converter has become less effective over the years and should be replaced. Also, the oxygen sensor is responsible for trimming the fuel ratio, and high CO indicates that the engine is running rich. I would start by changing the oil as it may be contaminated now, then replacing the O2 sensor. Then replace the cat. if it still fails. The oxygen sensor could really just be considered maintenance at this age.

1993 Honda... | Answered on Sep 25, 2011

The tank at the end of the brake booster is for the brake fluid and the one on the fire wall is for the clutc but sometimes the clutch and the brake share the same tank

1993 Honda... | Answered on Aug 09, 2011

You will have to see if your getting spark and fuel. If your getting both it should be starting either timing or injector pulse isn't working maybe. If your not getting spark, you will need to check your ignition system. If your still not getting fuel then you have a relay or maybe a computer problem. This isn't exact but a short list of what to check so you can reply with more information.

1993 Honda... | Answered on Aug 05, 2011

Check coil for fire if no fire then replace ignition control module.

1993 Honda... | Answered on Jul 14, 2011

Check the MAP Sensor... I had the same prob. My car would not rev past 2500RPM. I just ended up buying a new MAP sensor and fixed the problem.

1993 Honda... | Answered on May 23, 2011

Check in this link the Honda Prelude 1992 - 1995 Installation Procedure

Hope helps (remember to rate this answer).

1993 Honda... | Answered on Mar 23, 2011

check to see if you are getting spark and/or fuel to the engine first.

1993 Honda... | Answered on Mar 23, 2011

im sorry to tell you that after changing all components in cooling system, (Im assuming this included the waterpump?) your problem is most likely being caused from cylinder head gasket failure. Removal of the cylinder head to replace this gasket should only be undertaken by a very mechanically minded person. Good luck.

1993 Honda... | Answered on Mar 11, 2011

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