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Discussion Starter #1
i had found a lot of water over the pfc and harness after a rainstorm a pair of months ago. after i dried it and spray it with anti-rust for e-device.

the problem is:

when i slightly touch the gas the engine stutter around 2k rpm until 3,5k.
the vta sensor is going from 4,89 / 90v to 4,93 /94v for a brief moment. it mean that close the TB butterfly, and sometimes the engine go under the idle point and shut off.

if i push the gas hard the same happen, but then it is going to 4,30v opening the TB.. but when i release the pedal or i stay for a while with constant low pressure i have a lot of backfire and bang.

the pfc is gone? or the position sensor on the TB? :(

Really no Idea and big frustration. :ambulance:

thanks for support and very very sorry for the poor english.
 

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any ideas ? :(
Sounds like the TPS on the TB. Do a sensor sweep with an ohm meter. You shoudl see teh resistance change slowly and steadily as you move the bellcrank. If you get to a point where it jumps drastically, and then goes back when you pass the spot, that indicates a bad TPS
 

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OR...

Just Pull the TPS Plug from the TPS Sensor, and Drive it..

It SHOULD drive ok with SLOW throttle Input ( Do Not Move the Throttle Quickly )..

If it drives better, then it's the TPS..

My English is Poor Also :) But I do not have an Excuse

Cap
 

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Discussion Starter #5
thanks Cap and Griffin

ok i'll try it.

as side note, i cleaned the maf and airfilter to exlude some factors. of course useless.
 
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