Diognostic codes
Thread Starter
Heel & Toe
Joined: May 2016
Posts: 21
Likes: 0
Diognostic codes
So I’ve got a code on my 88c4, I’ve done the paperclip trick and it’s goin 1234 pause 123.
I was cruzing along behind a v8 land cruiser, and decided that he was goin to slow, so I dropped it down and massaged the throttle and as I was flying past the over weight noisy pig, it made a funny noise, and the check engine light came on, no significant noises or loss in performance came after, but there must be something goin on for check engine light to come on.
I was cruzing along behind a v8 land cruiser, and decided that he was goin to slow, so I dropped it down and massaged the throttle and as I was flying past the over weight noisy pig, it made a funny noise, and the check engine light came on, no significant noises or loss in performance came after, but there must be something goin on for check engine light to come on.
Last edited by Monaro72; Aug 12, 2019 at 04:42 AM.
Instructor
Joined: Aug 2018
Posts: 168
Likes: 22
From: New York
I've used the paperclip method to pull codes on my 90 L98 which is probably similar to your 88. Light will flash the number 12 three times to show the system is working then pause and flash any stored codes 3 times. There is a short pause between the code numbers and a longer pause if there is more than one code stored. Once all the codes are displayed the system will flash 12 three times again to indicate there are no more codes and then go thru the sequence again until the paperclip is removed.
Safety Car
Joined: Aug 2002
Posts: 3,842
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From: SANTA CRUZ CA
Last edited by don hall; Aug 14, 2019 at 11:05 PM.
Thread Starter
Heel & Toe
Joined: May 2016
Posts: 21
Likes: 0
Spark control module
So I pulled a code 43, electronic spark control module, and it’s related to the knock sensor.
so I replaced both, unplugged the negative battery terminal before removal and replacement, that’s what the book said to do, so it clears the code,
after start up, the code has been cleared, but it wouldn’t idle to save itself, so I turned up the idle on the throttle body, it idles ok, but am I missing something, it runs ok, but would that need a tickle on the dissy the get it idle, before the module **** itself it was idling fine
so I replaced both, unplugged the negative battery terminal before removal and replacement, that’s what the book said to do, so it clears the code,
after start up, the code has been cleared, but it wouldn’t idle to save itself, so I turned up the idle on the throttle body, it idles ok, but am I missing something, it runs ok, but would that need a tickle on the dissy the get it idle, before the module **** itself it was idling fine
Thread Starter
Heel & Toe
Joined: May 2016
Posts: 21
Likes: 0
Diognostic codes
Hi guys, I’ve got an 87 c4 and I’m trying to decipher a couple of codes.
first one is, flash flash flash pause flash flash flash flash flash flash.
second on is flash flash pause flash flash flash.
If anyone can help me out, it would hugely appreciated.
cheers guys
first one is, flash flash flash pause flash flash flash flash flash flash.
second on is flash flash pause flash flash flash.
If anyone can help me out, it would hugely appreciated.
cheers guys
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