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post #1 of 11 (permalink) Old 08-03-2002, 11:01 PM Thread Starter
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TPS Sensor

I had a post on the old forum about a problem that I was having and I was told that it was the Throtle Positioning Sensor. I was wondering how much one of these would be and where it is located in my car. I was looking in a tear down manual and didn't find anything that seemed to be that part. So I am turning to you. Any help would be greatly appreciated.

Christopher
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post #2 of 11 (permalink) Old 08-04-2002, 12:14 AM
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What is the problem you are having??? The TPS should read in the neighborhood of .98 volts. You can tap into the center(?) wire on the harness to read the voltage or use a scanner to watch the voltage.

I installed a 75mm TB and a friend drilled out the holes and adjusted the TPS til the voltage was correct. It took about 25 minutes or so or playing with it on the car during idle, but we eventually got it under 1 volt. Ordering a new one might not fix the problem. Just don't get aggressive with the adjustment or you can break the TPS.

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post #3 of 11 (permalink) Old 08-04-2002, 01:16 AM Thread Starter
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What I have is a problem during acceleration. I have good acceleration up to about 3500 rpm and sometimes it will hang up and not go any higher. The only thing that I can do is to let up on the gas and let it drop back down and then try again.

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post #4 of 11 (permalink) Old 08-04-2002, 01:14 PM
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Does the car jerk at the 3500 RPM mark? And what are the mods on the car. I had a small issue with the car jerking and sticking at 15-2000 at about 30-40 mph.

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post #5 of 11 (permalink) Old 08-04-2002, 05:58 PM Thread Starter
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There is no jerking. It just comes up to power to 3500 and then it feels as though it loses all power but keeps the 3500. As of right now I just have a K & N cone filter installed instead of the air box. I have other mods in mind but I am not going to continue with then untill I have resolved this problem.

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post #6 of 11 (permalink) Old 08-10-2002, 11:06 PM Thread Starter
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Do you have anything else for me Todd.

Christopher
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post #7 of 11 (permalink) Old 08-11-2002, 01:00 PM
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What year is the car and does this occur when you are going into OD? When was the last time you changed the trans fluid? Not like I'm certain or anything...but it could be time for the major trans flush.

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post #8 of 11 (permalink) Old 08-11-2002, 01:01 PM
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Have you checked the TPS voltage yet?

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post #9 of 11 (permalink) Old 08-11-2002, 08:30 PM Thread Starter
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I have a 97 V8. I did a flush just over a year ago but I have been looking into doing the J-Mod and at the same time going over to Mercron V. I have not had the chance to test the sensor. My dad is a mechanic but he has been out of town, he is supposed to be back this saturday so I am holding off until then.

Christopher
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post #10 of 11 (permalink) Old 08-11-2002, 08:32 PM
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Post your results once you check the TPS volatage. I don't really know what else to advise you on. I'm no tech guru.

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post #11 of 11 (permalink) Old 08-12-2002, 05:58 AM Thread Starter
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Thanx for all your help Todd. I will post as soon as I check it all out.

Christopher
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