Check engine no codes?
Thread Starter
Instructor
Joined: Aug 2003
Posts: 152
Likes: 0
From: Norton Ohio
Check engine no codes?
My 89 keeps flashing check engine I checked the codes it shows nothing when I let out the clutch to slow down like when coming to stop light the light goes out until I push the clutch in.It runs fine any thoughts .
Le Mans Master
Joined: Jul 2009
Posts: 8,041
Likes: 2
From: EOF ★ Kaliforniastan ★
St. Jude Donor '10
Le Mans Master
Joined: Jan 2010
Posts: 8,553
Likes: 3
Hasn't done it since, restarted at least 30 times..hasn't happened again.
No codes...I checked after it happened. Engine ran great, even with the flicker.
Ran at least 50 miles after, no problems.
I'll keep an eye on it. I'll toss it up to an annomily, cause I'm in a really good mood at the moment.
edit.
It might have been cause i ran some carb cleaner thru it to clean up the IAC. It was shortly thereafter when it happened.
Btw, after using some carb cleaner....removed air thingy in front of TB, I sprayed some in the small hole located in th bottom middle. My "surging" which wasn't very noticable cept to me, has since gone away. Mike form McInnis told me to do this. It worked.
Last edited by Jamesnns; May 14, 2010 at 06:11 PM.
Le Mans Master
Joined: Jul 2009
Posts: 8,041
Likes: 2
From: EOF ★ Kaliforniastan ★
St. Jude Donor '10
It was after. CE was blinkig really sporatic (sp, thank you MDG.), kinda flickering.
Hasn't done it since, restarted at least 30 times..hasn't happened again.
No codes...I checked after it happened. Engine ran great, even with the flicker.
Ran at least 50 miles after, no problems.
I'll keep an eye on it. I'll toss it up to an annomily, cause I'm in a really good mood at the moment.
edit.
It might have been cause i ran some carb cleaner thru it to clean up the IAC. It was shortly thereafter when it happened.
Btw, after using some carb cleaner....removed air thingy in front of TB, I sprayed some in the small hole located in th bottom middle. My "surging" which wasn't very noticable cept to me, has since gone away. Mike form McInnis told me to do this. It worked.
Hasn't done it since, restarted at least 30 times..hasn't happened again.
No codes...I checked after it happened. Engine ran great, even with the flicker.
Ran at least 50 miles after, no problems.
I'll keep an eye on it. I'll toss it up to an annomily, cause I'm in a really good mood at the moment.
edit.
It might have been cause i ran some carb cleaner thru it to clean up the IAC. It was shortly thereafter when it happened.
Btw, after using some carb cleaner....removed air thingy in front of TB, I sprayed some in the small hole located in th bottom middle. My "surging" which wasn't very noticable cept to me, has since gone away. Mike form McInnis told me to do this. It worked.
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Le Mans Master
Joined: Dec 2000
Posts: 7,839
Likes: 22
From: San Diego, Ca
Light is driven (grounded) by the ECM so that could be bad, but more than likely, it's got an intermittent short to ground on the ECM side which is Pin A5 or the Brown/White wire at the Display. Of course you will have to remove the Panel to troubleshoot the wire. There is also a possibility that it's at the Diagnostic Link, Pin B which is the ECM reference for Serial Data. When that wire is grounded to Pin A, the ECM flashes the Check Engine Light and after a Code 12, it spits out any other Codes that are Current or recorded in History. I'd make sure it can flash a Code 12 and then check the Connector to make sure that A & B are separated. People stick all sorts of crap in the Link to Check Codes and if the Plastic separating the Pins is broken, the terminals could be touching and lighting it up.