Service Engine Soon light - ?
Thread Starter
Drifting
Joined: Apr 2002
Posts: 1,817
Likes: 1
From: Hartland WI
Service Engine Soon light - ?
Maybe its coincidence - what you think?
We just put the car back together after having replaced the intake gaskets. everything runs great. Had to make an adjustment to the TV Cable, but thats ok now too. Went to get the oil changed yesterday afternoon - still all ok.
After work yesterday I start the car and the Service Engine Soon light comes on and stays on.
car is an '88, auto, and just hit 59,600 miles (almost exactly at the time the light came on).
Is the light simply due to the mileage - ie gettig close to 60K, or is it possible that the oil change guys bumped something (although I'd think it would have come on right away then).
Since I'm pretty new to this, and I'm trying to work on my own car rather than going to a shop - what should I do now to either clear the light or find out why its on?
Thanks
We just put the car back together after having replaced the intake gaskets. everything runs great. Had to make an adjustment to the TV Cable, but thats ok now too. Went to get the oil changed yesterday afternoon - still all ok.
After work yesterday I start the car and the Service Engine Soon light comes on and stays on.
car is an '88, auto, and just hit 59,600 miles (almost exactly at the time the light came on).
Is the light simply due to the mileage - ie gettig close to 60K, or is it possible that the oil change guys bumped something (although I'd think it would have come on right away then).
Since I'm pretty new to this, and I'm trying to work on my own car rather than going to a shop - what should I do now to either clear the light or find out why its on?
Thanks
Thread Starter
Drifting
Joined: Apr 2002
Posts: 1,817
Likes: 1
From: Hartland WI
damn - good question. I don't think so now that you mention it. Seems to me that we loosened it to relieve pressure on the fuel line and I don't recall tightening it. 
Could that really casue that light to come on?
The car is at home today so I'll have to check when I get home. Assuming that its not, will the light go out by itself then?
Thanks
Could that really casue that light to come on?
The car is at home today so I'll have to check when I get home. Assuming that its not, will the light go out by itself then?
Thanks
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
The light comes on when the ECM "sees" a reading from a sensor that is outside the parameters for that sensor. It could be a defective sensor or more likely some malfunction that caused the sensor to send a reading the ECM doesn't like.
Since you are new to this and plan on to work in the car, you are going to NEED a Factory Service Manual. The manual will explain the different sensors, how the system each sensor monitors works, and how to trouble shoot each system and test the components to minimize the expensive replacement of good parts. When the light comes on, a "code" is set to indicate the source of the "bad" reading. The manual will tell you how to extract that code from the ECM and send you on a path for correcting the problem. The FSM is printed by Helm Inc. They cover only a single year Corvette. You can sometimes find them for sale in the forum "Parts for Sale/Wanted" section or on ebay. To order a new manual, direct, go to www.helminc.com The other tool you will need is a digital volt ohm meter (DVOM). Have fun.
RACE ON!!!
Since you are new to this and plan on to work in the car, you are going to NEED a Factory Service Manual. The manual will explain the different sensors, how the system each sensor monitors works, and how to trouble shoot each system and test the components to minimize the expensive replacement of good parts. When the light comes on, a "code" is set to indicate the source of the "bad" reading. The manual will tell you how to extract that code from the ECM and send you on a path for correcting the problem. The FSM is printed by Helm Inc. They cover only a single year Corvette. You can sometimes find them for sale in the forum "Parts for Sale/Wanted" section or on ebay. To order a new manual, direct, go to www.helminc.com The other tool you will need is a digital volt ohm meter (DVOM). Have fun.
RACE ON!!!
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Originally Posted by rstackjd
Could that really casue that light to come on?
Assuming that its not, will the light go out by itself then?
Thanks
Assuming that its not, will the light go out by itself then?
Thanks
RACE ON!!!
