is 4cyl and 6 cyl tps the same? - Jeep Wrangler Forum
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Old 08-25-2012, 07:18 PM   #1
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is 4cyl and 6 cyl tps the same?

can someone confirm if the throttle position sensor on the 4 banger is the same as the i6? did the 4.0 tb swap and switched the iac over but not the tps since it looked identical. jeep runs great but at inital start up, it idles at like 2grand for 10 seconds and then drops down to normal. swapping out my old tps when i get home see if that does anything.

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Old 08-25-2012, 09:28 PM   #2
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Quote:
Originally Posted by jerseYJ
can someone confirm if the throttle position sensor on the 4 banger is the same as the i6? did the 4.0 tb swap and switched the iac over but not the tps since it looked identical. jeep runs great but at inital start up, it idles at like 2grand for 10 seconds and then drops down to normal. swapping out my old tps when i get home see if that does anything.
No they are different. Atleast mine are. You can see the difference with a volt meter. That probably is your problem.

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Old 08-26-2012, 02:45 PM   #3
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swapped it out but does same thing. im thinking ecu reset is needed(which i didnt do after swap either )
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Old 08-26-2012, 02:59 PM   #4
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swapped it out but does same thing. im thinking ecu reset is needed(which i didnt do after swap either )
Hehe. Yea mabe that will fix it. Holler if it doesn't.
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Old 08-26-2012, 03:44 PM   #5
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Hehe. Yea mabe that will fix it. Holler if it doesn't.
appreciate it, will keep you posted
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Old 08-26-2012, 03:47 PM   #6
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Hey guys I just did a i4 to a i6 swap and the Tps on the six was broke so I used the one off the i4 and the 6L runs good with it

I have a 92 yj with 95 i6 engine. Hope this helps
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Old 08-26-2012, 04:06 PM   #7
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Hey guys I just did a i4 to a i6 swap and the Tps on the six was broke so I used the one off the i4 and the 6L runs good with it

I have a 92 yj with 95 i6 engine. Hope this helps
they look identical but could be slightly different, maybe a start up sequence or something is different. i will reset the ecu and see if that makes a difference. if anything it isn't that serious of an issue.
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Old 08-26-2012, 04:21 PM   #8
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Good luck
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Old 08-27-2012, 03:08 PM   #9
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i did the pcm re learn today and it made no difference, after a little bit of forum surfing i believe i have found my problem: i didnt swap over the 2.5 ais motor housing. i swapped over the sensor but kept the 4.0 housing. from what i have read the 4.0 housing lets too much air in for the 2.5 sensor. i know most people swap the housings over but just as many(from what the write ups i have read) just swap the sensors over. i will throw the housing on tonight and hopefully that will fix my little issue
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Old 08-28-2012, 12:26 AM   #10
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Quote:
Originally Posted by jerseYJ
i did the pcm re learn today and it made no difference, after a little bit of forum surfing i believe i have found my problem: i didnt swap over the 2.5 ais motor housing. i swapped over the sensor but kept the 4.0 housing. from what i have read the 4.0 housing lets too much air in for the 2.5 sensor. i know most people swap the housings over but just as many(from what the write ups i have read) just swap the sensors over. i will throw the housing on tonight and hopefully that will fix my little issue
You are correct. They are different. I actually have the whole 4.0 idle air control module on it and it runs fine. They just need to stay paired together.
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Old 08-30-2012, 05:46 PM   #11
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repaced the 4.0 housing with the 2.5 one and it works great now. starts fines and idles good. figured i'd include pictures for anyone in the future that needs help

circled is where i grinded the notch off 4.0 housing




2.5 sensor in 4.0 housing before i switched it back into 2.5 housing(marked 2.5L)




4.0 tb assembled with 2.5 housing and sensor. as far as i am aware, the tps sensors are same on both throttle bodies




tip:be careful to not damage the paper gasket when taking housing apart. if it does rip, you can use the 4.0 housing one also or sit it in place and put a drop of super glue over tears, seal and torque properly

tip: tb's are soft metal, use throttle body and carb cleaner only, they are sensor safe cleaners. i don't recommend brake cleaner.
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Old 02-10-2013, 09:31 AM   #12
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4.0 2.5l TPS

I did the swap about 4 months ago. Tps are the same. Iac and housing are not. I had a high idle for a couple of days unt
il the computer relearned. idles at about 800 now.

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