Tech / General EngineIs your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
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Well my factory water temp guage was not working so i bought an AutoMeter Cobalt guage to match the rest of the guages in my car.
I had to install the AutoMeter temp sensor in place of the factory one which means that the CEL is on because the plug has nothing there to plug into.
Any ideas on how to turn the CEL off? I would like it to be as a warning rather than it always being on.
__________________ 1987 Trans Am- vortec 5.7L swap, ZZ4 Heads, ZZ4 cam, ROH Snypers, Edelbrock headers, 3" Y-pipe into 3"catback with a 80s flowmaster, 4th gen front seats
future mods- new paint, black interior, t56/ls combo, widened rear wheels, ls1 brakes, full suspension
Re: check engine light on due to water temp sensor
yea, put the temp sensor back into your manifold and try removing the temp SENDER in your drivers side head. thats the one for the guages. is between cylinder 1 and 3 and has a sing green wire plugged into it. THATS where your aftermarket sensor goes, and chances are you guage is fine, its just the sender that was bad
Re: check engine light on due to water temp sensor
yes, thats the one for your ecm. im suprised the engine isnt running like s**t lol. put that one BACK in, and plug it back int, on your driver side head between cylinders 1 and 3 under the manifold is another sensor, its the one for your gauges, put your new sensor there and plug the gree wire and your new guage wire into it.
Re: check engine light on due to water temp sensor
That's the one I thought but I didn't think it would throw a code.
I was under the impression that it was just an informational sensor. Without would just cause the ecm to default to a preset value.
Re: check engine light on due to water temp sensor
Quote:
Originally Posted by Viprklr
That's the one I thought but I didn't think it would throw a code.
I was under the impression that it was just an informational sensor. Without would just cause the ecm to default to a preset value.
YOUR ecm takes information from the sensor in your manifold when its running 24/7 it is used to turn on your Cooling fans if you have tpi, it is used to trim your fuel values and for cold start enrichment, without it your computer will default and set the CEL, and your MPG's will plummet
