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LH 2.4 component checks Posted by JimBlake [Email] (#141) [Profile/Gallery] (more from JimBlake) on Wed, 29 May 2002 21:06:14 In Reply to: hey ROO, check this out..., JimBlake [Profile/Gallery] , Wed, 29 May 2002 20:57:29 Members do not see ads below this line. - Help Keep This Site Online - Signup |
If you know how to retrieve fault codes from your LH 2.4 system, you can also check some components, too. I've mentioned these a couple of times, but it doesn't sound like they are too well-known. Maybe Bentley doesn't have much on this. Townsend doesn't include it in his web page.
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 then stop
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
posted by 12.152.98...
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