jazzman170
Probationary Member
- 9
- 0
- Aug 27, 2016
-
Porterville,
California
VIDEO:
Vehicle: 95 eagle talon 2.0 non turbo, manual 420A engine
In the video you notice i only hit the gas once and it sticks at 1600 rpm as the idle before going back to normal and then to surging. Normally my car keep's the high idle, it has the high idle of 2k and 3krpm more often than surging like in this video. You can imagine how annoying this is to drive when its at 2k or 3k rpm and im coming off the clutch, or im at a stop light -.- This is especially annoying since if its surging like in the video and im accelerating because of a green light, when cars are in front of me i cant just kinda coast in 1st or 2nd because its surging and shaking the entire engine due to it giving it gas/lowering/gas/lowering. I have to drive fast and idle it coasting behind people sometimes
I have been dealing with this issue for months. EVERY sensor on the car has been replaced aside from crank sensor! There are no vacuum leaks as they have all been found and fixed. The only thing im thinking it could be now is a faulty ECU that is having issues with either the IAC (Idle air control) or TPS (Throttle Position Sensor).
When i had my brother check the wiring, the IAC wire had been siting on something hot and was grounding out (Metal on metal, it melted through the wiring) and looked to have been that way for quite some time as the wire was almost melted through entirely. He cliped out the bad metal and soldered the ends together, taped it up and it changed nothing with the surging.
Sometimes the car is perfectly fine and doesnt surge but holds at 2k rpm, sometimes it holds at 3k rpm, all while not giving it any gas. The day's it does a good normal idle it starts off that way but after driving it for a very short while it starts sticking at 2k rpm and holding. Other times it'l surge up and down.
The other day on my way to work i went to go get fast food and turned my car on/off multipe times as i moved through the line. Turned my car on and got my food, headed out to work and noticed it seemed to be lacking a bit of horse power. The moment i hit 3500 RPM it started kicking back as if i unplugged the TPS. I turned the car off (while going on the road) and turned it back on and hit the petal to see if it got past 3500 rpm or still kicked back but it was good to go again (Aside from the normal sticking at 2k or 3k rpm when idle)
Sometimes (Rarely) my engine will jerk really hard while im driving and it goes back to a normal idle, other times when it jerked it goes back to normal but returns to the high idle or surging idle. I'm not sure if its the computer trying to adjust something and succeeds but then fails or what, but again that rarely happends. Has only ever done that hard jerking maybe 2 or 3 times in the 2 years i've owned it that its been doing this. I'm only mentioning it because its odd
Does this sound like a faulty ECU with something to do with the TPS?
Please dont say to replace sensors, i have replaced the IAC and TPS each 4 times now, those arent the issue. All other sensors are new as well, and under warranty. I even replaced the TPS and IAC after i fixed the melted wire.
Check engine line comes on and off due to i dont have a speedometer sensor plugged in.
What do you guy's think? I'm at a loss. The guy at autozone even said when customers send their ECU's in for a fix, most of the time they get them back and the problem wasnt fixed. I dont know where i can get a spare ECU that is just plug and play for my car and no vendors make/sell new/re-manufactured ones anymore. It seems like my only choice is to give autozone my ECU anyways and gamble. Its not cheap, couple hundred and if it doesnt even fix my issue that would be horrible
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Vehicle: 95 eagle talon 2.0 non turbo, manual 420A engine
In the video you notice i only hit the gas once and it sticks at 1600 rpm as the idle before going back to normal and then to surging. Normally my car keep's the high idle, it has the high idle of 2k and 3krpm more often than surging like in this video. You can imagine how annoying this is to drive when its at 2k or 3k rpm and im coming off the clutch, or im at a stop light -.- This is especially annoying since if its surging like in the video and im accelerating because of a green light, when cars are in front of me i cant just kinda coast in 1st or 2nd because its surging and shaking the entire engine due to it giving it gas/lowering/gas/lowering. I have to drive fast and idle it coasting behind people sometimes
I have been dealing with this issue for months. EVERY sensor on the car has been replaced aside from crank sensor! There are no vacuum leaks as they have all been found and fixed. The only thing im thinking it could be now is a faulty ECU that is having issues with either the IAC (Idle air control) or TPS (Throttle Position Sensor).
When i had my brother check the wiring, the IAC wire had been siting on something hot and was grounding out (Metal on metal, it melted through the wiring) and looked to have been that way for quite some time as the wire was almost melted through entirely. He cliped out the bad metal and soldered the ends together, taped it up and it changed nothing with the surging.
Sometimes the car is perfectly fine and doesnt surge but holds at 2k rpm, sometimes it holds at 3k rpm, all while not giving it any gas. The day's it does a good normal idle it starts off that way but after driving it for a very short while it starts sticking at 2k rpm and holding. Other times it'l surge up and down.
The other day on my way to work i went to go get fast food and turned my car on/off multipe times as i moved through the line. Turned my car on and got my food, headed out to work and noticed it seemed to be lacking a bit of horse power. The moment i hit 3500 RPM it started kicking back as if i unplugged the TPS. I turned the car off (while going on the road) and turned it back on and hit the petal to see if it got past 3500 rpm or still kicked back but it was good to go again (Aside from the normal sticking at 2k or 3k rpm when idle)
Sometimes (Rarely) my engine will jerk really hard while im driving and it goes back to a normal idle, other times when it jerked it goes back to normal but returns to the high idle or surging idle. I'm not sure if its the computer trying to adjust something and succeeds but then fails or what, but again that rarely happends. Has only ever done that hard jerking maybe 2 or 3 times in the 2 years i've owned it that its been doing this. I'm only mentioning it because its odd
Does this sound like a faulty ECU with something to do with the TPS?
Please dont say to replace sensors, i have replaced the IAC and TPS each 4 times now, those arent the issue. All other sensors are new as well, and under warranty. I even replaced the TPS and IAC after i fixed the melted wire.
Check engine line comes on and off due to i dont have a speedometer sensor plugged in.
What do you guy's think? I'm at a loss. The guy at autozone even said when customers send their ECU's in for a fix, most of the time they get them back and the problem wasnt fixed. I dont know where i can get a spare ECU that is just plug and play for my car and no vendors make/sell new/re-manufactured ones anymore. It seems like my only choice is to give autozone my ECU anyways and gamble. Its not cheap, couple hundred and if it doesnt even fix my issue that would be horrible
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