Check Engine Light after hitting 2500+ RPM
04-22-2006, 11:12 PM
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Check Engine Light after hitting 2500+ RPM
I just put a fresh motor in my 86 SR5 fom a 90 22Re Truck. It starts up and sounds great but it gets a check engine light when I rev the engine. It sounds great and nothing sounds wrong to me. I have a hunch, the component that has a green/blue fuel injector like plug got snapped where the small black plastic cylinder attaches to the connector. Also this motor didn't have a connection for a knock sensor where as my old motor did. Currently the knock sensor is not connected. My search wasn't helpful because I don't know what that green plug is called.
04-23-2006, 10:06 AM
#2
did you use the engine harness from the 90 engine, or from the 86?
You have to use your 86 engine harness, as well as the intake, and you will have to put the knock sensor onto the engine you are putting in. I'd say the check engine is definetly from the missing knock sensor.
You have to use your 86 engine harness, as well as the intake, and you will have to put the knock sensor onto the engine you are putting in. I'd say the check engine is definetly from the missing knock sensor.
04-23-2006, 10:11 AM
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The harness is the 86 harness. i think it is the knock sensor also, because the truck runs perfectly and that is the only thing that I can recall that wasn't like the stock motor. Will it be alright to drive w/o this temporarily b/c I just got a flat in my 240z?
Last edited by elmo908; 04-23-2006 at 10:14 AM.
04-23-2006, 11:35 PM
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you can always pull the codes manually by shorting the diganosis box with a paper clip circuit e1 to te1 then turn your key on and count the flashes the first flashes are ten's and then there will be a pause then the next flashes are the ones so if the check engine flashes 5 times first then pauses then flashes 2 times the code is 52 wich is actually the real code for the knock sensor on yota 3.0L
04-24-2006, 04:44 AM
#7
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Originally Posted by chip
you can always pull the codes manually by shorting the diganosis box with a paper clip
You may be right, but I just don't think I'll ever do that . . .
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04-24-2006, 10:49 PM
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Originally Posted by 4mydogs
You may be right, but I just don't think I'll ever do that . . .
04-25-2006, 06:20 AM
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Originally Posted by DeathCougar
Why wouldn't you ever do that? The FSM specifically tells you to do that when pulling codes out of the computer. Its not really "shorting" it out parsay, you are just completing the circuit from E1 to TE1 which will then start the self-diagnosis coding.
I get a TPS code past about 3000 RPMs with it jumped. Works pretty awesome!
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