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Registered:
November 2002
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 Engine Code Frenzy
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Thu, 14 April 2005 05:21
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I have an infuriating problem.....
My car is an RA23 with a 1G-GZE. The engine and all its components (including AFM) are from a late 1988 GS130 Crown, the ECU is from an early 1989 GX81 Chaser. It starts, runs and drives, but runs very very rich and like its in limp home mode all the time.
Initially I found that when I pulled the water temp sensor out I got a code 11, meaning interruption to the ECU power, not the expected code 22, Water Temp sensor.
With Sideshows help  (the man is a legend!) I found that the earth for the sensors (E2) was not grounded, so I put another earth in and that seems to have fixed that. Pulling the water temp sensor gave me a code 22 now. Ran the car for a day, still uber rich.....
So, now I pulled off almost all the sensors to see what would happen. I disconnected the TPS, Water Temp, ISCV, AFM, 02 sensor and Knock sensor (1 of 2), started the car and let it run for a minute.
Shorted the TE1 and E1 and started counting flashes. I got 22 - Water Temp, 24 - Intake Air Temp (AFM?) and 41 - TPS, only. Nothing more. So, I cleared the codes, hooked back up AFM, TPS and Water Temp, left ISCV, O2 and Knock disconnected, and started it again for a minute - tested for codes and got none, just the continuous flashing......
WTF ?????
Are all these sensors U/S ? Or do I have a deeper ECU problem. If its an auto ECU I have, is it expecting inputs from an auto tranny ?
Any help much appreciated.
Thanks,
Mitch.
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