Damn I am sorry, but computer question
Thread Starter
Heel & Toe
Joined: Oct 2005
Posts: 20
Likes: 0
Damn I am sorry, but computer question
I read that SOMETIMES you can solve an idle problem by disconnecting the battery and reconnecting. It lets the computer relearn the idle? OK, I don't know ****. My friend said I need to drive the car, the computer will fix the idle.
My other friend said, wait for a full moon, ***** your finger.....
OK, guys, I am sorry, I just don't know squat about the tuned port injection. What can I check and clean myself? Mama ain't working now, so it is NOT going to the shop for a while.
Thanks again for your help and insight into the unknown
Marc
My other friend said, wait for a full moon, ***** your finger.....
OK, guys, I am sorry, I just don't know squat about the tuned port injection. What can I check and clean myself? Mama ain't working now, so it is NOT going to the shop for a while.
Thanks again for your help and insight into the unknown
Marc
Race Director
Joined: May 2001
Posts: 14,165
Likes: 9
What year car, and describe the symptoms please. It could be as simple as a vacuum leak or it could be a messed up idle air control valve, but either way we'll have to know the symptoms to even begin diagnosing it.
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
The idle speed is programmed (burned) into your prom. It isn't subject to "relearning". The ECM manipulates the IAC valve to adjust the idle speed for the conditions the prom "sees" via the other sensors. You can start by cleaning the IAC passages in the TB and the IAC valve, itself. Although it isn't cheap, the FSM (Factory Service Manual) can help save you a fortune.
RACE ON!!!
RACE ON!!!
Thread Starter
Heel & Toe
Joined: Oct 2005
Posts: 20
Likes: 0
computer
when I turn the key, it fires and quits, but I end up holding the peddle in to start it, then it will run smoothly, but release the peddle and it will quit.
Car is a 1986 C4, Auto, iron head. Many, Many, Many taped wires.
But when it runs with the peddle depressed, it runs well.
TB is throttle body? Tell me what to clean, I am off to get the service manual.
Thanks you all,
Marc
Car is a 1986 C4, Auto, iron head. Many, Many, Many taped wires.
But when it runs with the peddle depressed, it runs well.
TB is throttle body? Tell me what to clean, I am off to get the service manual.
Thanks you all,
Marc
Le Mans Master
Joined: Feb 2006
Posts: 8,753
Likes: 9
From: Louisiana
Is the Service Engine Soon light on? If so there is a code(s) stored in the ECM. You can access the code by using a paper clip and making a U with it. Then insert it into the ALDL under the drivers dash. It is pin A and B, the two upper right pins next to each other. With the key turned on, insert the paperclip and the SES light will flash a code 12.. one flash -pause- two flashes and will repeat x 3. Then the next set of flashes wil be the code (ex. three flashes- pause- two flashes x 3 is code 32). This will be the first step in solving the problem. If the SES light is not own, then as CFI-EFI stated you might want to clean the IAC (idle air control located on bottom of TB) and TB (throttle body) along with setting minimal idle and TPS. There are posts on the steps to take for these procedures. Get back with more info.
Last edited by RRT vette; May 4, 2006 at 06:10 PM.
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Racer
Joined: Feb 2005
Posts: 422
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From: ERIN Ontario
Originally Posted by Smithdogs
when I turn the key, it fires and quits, but I end up holding the peddle in to start it, then it will run smoothly, but release the peddle and it will quit.
Le Mans Master
Joined: Feb 2006
Posts: 8,753
Likes: 9
From: Louisiana
Originally Posted by Smithdogs
Was the car running or not at the time? did you have the ignition on or off? Thanks.
Marc
Marc
Racer
Joined: Feb 2005
Posts: 422
Likes: 0
From: ERIN Ontario
Originally Posted by Smithdogs
Was the car running or not at the time? did you have the ignition on or off? Thanks.
Marc
Marc
I've never attempted pulling the ECM fuse with it runnung . (probably not a great idea ? )
Mike