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TPS voltage readings

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Old 05-28-08, 06:38 PM
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TPS voltage readings

OK 1st a little back ground on the problem.

The car was flooded pretty bad and I got it started back-up let it warm to operating temps then took it for a spin, at WOT the car would back fire and buck violently at around 3500 rpm. When smooth on the accelerator the problem was not present.

I did hours of searching and found some pretty helpful threads, I figured it was a fouled plug so I changed the plugs and still have the same problem, I checked all the vacuum lines and ground connections everything seems to be ok , after some advice from a knowledgeable forum member I checked the TPS voltage.

my readings are as follows

0.56 - 4.55 on the 3F ECU wire
0.2 - 1.20 on the 3G ECU wire

Now I realize that's way off and not in the proper range. I tried to adjust it but could not get it any better. My question is could something else be causing this or is the TPS bad for sure.?
I don't want to start throwing a bunch of money changing parts and not solving the problem.

BTW the car was running fine just prior to being flooded.
Old 05-28-08, 07:35 PM
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wires go from the ecu right to the tps, so either the harness is bad, and or the tps
Old 05-28-08, 07:45 PM
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Thats what I'm afraid of, thanks for the reply
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