I have a 91 Integra and need to varify the method of reading the codes from the ECU as the check engine light has comes on.

I have a A/F meter and the guage reads that the A/F is very lean.

The LED on the ECU flashed three long pulses, and then 3 short pulses. Is the first three long pulses a 10, or is that a 30?

Lastly, is the last three short pulses a 3? I would appreciate as much information on this as possible.

I spent four long hours pounding out the upper ball joint assembly just for a seized pin sleeve which needed a BFH to persuade out.

I don't think my 105 female frame was meant to weild a 20 lbs BFH .


Love

Chase Taylor

 

I don't have a list of codes for '91, but here goes. Maybe it's the same...

3 long & 3 short = 33, if there's no space between the longs & the shorts. But my list doesn't have anything for 33.

3 long = 30 = auto trans signal A
3 short = 3 = MAP sensor

 

JimBlake,

Thanks for the input. I checked the ECU for the MIL / CEL code(s) and it was a code 43.

I will have to check the voltage to the O2 sensor, and the fuel pressure regulator for proper PSI levels.

Can someone confirm that the fuel pressure is from 37- 44 PSI with the vacuum hose disconnected for me?

Also, if the voltage from the O2 sensor should be above 0.6 VDC at 4, and 500 RPM's. and below 0.4 VDC when the throttle is quickly released from 4500 RPM's.


Love

Chase Taylor