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You mean the Bentley book doesn't have this??
This is from the factory shop manual for my '89 with LH 2.4, I don't know what's changed vs. yours. In '92 you should have LH 2.4.2 system but "I think" it would be similar.
First, check out
http://www.swedishwrench.com/flashcode.htm
for how to retrieve the fault codes.
For these tests, you ground the jumper BEFORE turning on the ignition. DON'T start the engine. When the check engine light (CEL) flashes once, open the jumper and listen for the fuel pump to run for about 1 second.
Ground the jumper till the CEL flashes once, then open it for the next test. After you're done with each test, ground the jumper till the CEL flashes once, just like you're trying to read the next fault code.
Each test, in this order, displays a code like the faults:
1) (no code) fuel pump - listen, it'll run for about 1 second
2) 12411 fuel injectors - listen (unplug individually if you want)
3) 12412 AIC valve - listen, it'll open/close once per second
4) 12413 ELCD valve - listen, it'll cycle once per second
5) 12421 "drive" signal, automatic - stops flashing when you shift D to N
6) 12424 throttle closed signal - stops flashing when you just open throttle
7) 12431 throttle open signal - stops flashing when you fully open throttle
If anything doesn't work, this won't tell you WHY, you'll still have to chase after broken wires or something. In my case, this check showed the AIC to be fine, and in the end, I think the AIC system was getting an erratic tach signal from the ignition system. I eventually got frustrated & replaced plugs, wires, cap, rotor, adjusted the throttle position, & cleaned all the ground wires I could find. I'm not sure which of these things really was the culprit.
posted by 131.184.1...
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