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An appeal to our mechanical Gurus out there.
Symptoms: After driving our 05 without issue for about 80 miles, the car began to hesitate on acceleration from a stop. It got to a point where I had to push the gas pedal quite far down, and then it would kind of launch itself. If we were starting around a corner, the tires would even squeal. This car has 48,000 miles and has been a very strong running car, very smooth on acceleration from stop with no hesitation whatever has been the norm.
What has been done to this car by me: All new COPs and plugs, and a K&N CAI system, about 800 miles ago. Borla exhaust added about 500 miles ago. Car was running very strong and smooth. It still is running well, but for the issue from a standing stop.
My guess: (and it is only a guess) Is that something is off in the TPS (throttle position sensor) and it needs to be reset / replaced.
Questions: What is the procedure for checking the TPS is set correctly? How do I know if it needs replacing? Is it possible that the TPS adjustment simply came loose and slipped on the throttle shaft? Is the TPS even where to start looking?
What I think I know: I have in the past put an aftermarket (Holley) TBI injection system on an old Camaro. I had to set the TPS on that using a certain milliamp setting at a measured idle point. (Basically, I put a certain size drill bit to hold the throttle plate open to the idle position, and then set the TPS to the proper milliamp at idle. That was pretty much it.)
What I know: I know that I am not a Guru, and that I can do more harm than good by proceeding without proper guidance. I know I have worked on cars since I was a very young man, and that I can turn a wrench. I know that I am not an electronics wiz in any way shape or form.
If you would like to make helpful suggestions, I would be most appreciative. Thanks in advance for taking your time to respond.
Dave.
Symptoms: After driving our 05 without issue for about 80 miles, the car began to hesitate on acceleration from a stop. It got to a point where I had to push the gas pedal quite far down, and then it would kind of launch itself. If we were starting around a corner, the tires would even squeal. This car has 48,000 miles and has been a very strong running car, very smooth on acceleration from stop with no hesitation whatever has been the norm.
What has been done to this car by me: All new COPs and plugs, and a K&N CAI system, about 800 miles ago. Borla exhaust added about 500 miles ago. Car was running very strong and smooth. It still is running well, but for the issue from a standing stop.
My guess: (and it is only a guess) Is that something is off in the TPS (throttle position sensor) and it needs to be reset / replaced.
Questions: What is the procedure for checking the TPS is set correctly? How do I know if it needs replacing? Is it possible that the TPS adjustment simply came loose and slipped on the throttle shaft? Is the TPS even where to start looking?
What I think I know: I have in the past put an aftermarket (Holley) TBI injection system on an old Camaro. I had to set the TPS on that using a certain milliamp setting at a measured idle point. (Basically, I put a certain size drill bit to hold the throttle plate open to the idle position, and then set the TPS to the proper milliamp at idle. That was pretty much it.)
What I know: I know that I am not a Guru, and that I can do more harm than good by proceeding without proper guidance. I know I have worked on cars since I was a very young man, and that I can turn a wrench. I know that I am not an electronics wiz in any way shape or form.
If you would like to make helpful suggestions, I would be most appreciative. Thanks in advance for taking your time to respond.
Dave.
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