Motor revving at stoplight...

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Jims86

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I may take a look at the tps then.

Thanks guys!!! :) I'm not use to odb1 troubleshooting :)

If your harness is like the trucks, your TPS plug has a green, a blue, and a black wire.
with the key in the on position, Take a DVOM and probe the - to the black wire terminal, and the + to the green wire terminal. You should see 5v.
if so, plug it back into the TPS, and with The + probe, you can go from the wire side of the plug through the rubber, and probe the blue wire, and you can ground the - anywhere you want, and watch the meter while you rotate the throttle, look for any glitches or dead spots. Closed throttle should be no less than .5v
Wide open should be around 4v.
Assuming you see 5v in the first test, that alone would make me replace the TPS.
The only time you will see voltage code from the ECM is when the Alternator regulator takes a ****, and spikes up over 17v.
 
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oneluckypops

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If your harness is like the trucks, your TPS plug has a green, a blue, and a black wire.
with the key in the on position, Take a DVOM and probe the - to the black wire terminal, and the + to the green wire terminal. You should see 5v.
if so, plug it back into the TPS, and with The + prob, you can go from the wire side of the plug through the rubber, and probe the blue wire, and you can ground the - anywhere you want, and watch the meter while you rotate the throttle, look for any glitches or dead spots. Closed throttle should be no less than .5v
Wide open should be around 4v.
Assuming you see 5v in the first test, that alone would make me replace the TPS.
The only time you will see voltage code from the ECM is when the Alternator regulator takes a ****, and spikes up over 17v.

This^^^^^^^^^^
Jim definitely knows his fuel injection
 

Old77

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Just got done replacing my throttle position sensor. Took it for a spin and it runs good! We will see how things go this week :)
 

89Suburban

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Just got done replacing my throttle position sensor. Took it for a spin and it runs good! We will see how things go this week :)

Cool man!! :hands:
 

Old77

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:party33: can't imagine paying someone to do that! Took me 20 minutes and if I'd taken it to a shop probably woulda been charged $200
 

89Suburban

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:party33: can't imagine paying someone to do that! Took me 20 minutes and if I'd taken it to a shop probably woulda been charged $200

:lol:

That's how we roll he brah!! :High 5:
 

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