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Old 08-25-2012, 07:08 PM   #1
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throttle position sensor

I Changed the tps and plugs,wires and distr cap and rotor. Still runs like poo and the c e light is still on. Anyone have suggestions?

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Old 08-25-2012, 07:23 PM   #2
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What's the code/s

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Old 08-25-2012, 08:20 PM   #3
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More info... what year TJ and what codes? Do you know how to display the codes that are stored? The only years you can't display your own codes are '98-'00.
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Old 08-25-2012, 08:52 PM   #4
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Its a 99 sahara 4.o manual. P1023 tps/ pedal position sensor curcuit A is what the computer reads.Ive put 2 new tps and new wires plugs and dist cap + rotor. I checked every wire all is good checked every connector and clock springs all is good. Can someone help me out?
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Old 08-25-2012, 08:54 PM   #5
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If you are buying the TPS switches from a local auto parts store, made in china, you should return them for your money back and and get one from the dealer. China parts are very unreliable.
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Retired my 94 YJ 4cyl 5spd @ 200K
Now in a 04 TJ 4cyl 5spd CV @120K+
Both as a commuter vehicle in NW, NJ
April 2012.downsized and now a 99er.
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Old 08-25-2012, 08:54 PM   #6
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Ive also unhooked the battery and the c e light is still on also.
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Old 08-25-2012, 08:56 PM   #7
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Its a carquest part made in mexico. Dealership is gonna be made in some foreign country too. Probably china too. Or close to it.
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Old 08-25-2012, 08:58 PM   #8
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Did you buy your TPS's from the dealer or an auto parts store like Autozone? Sensors sold by retailers like Autozone are usually cheap Chinese imports which commonly cause problems. My son's oil pressure sender went bad on a Sunday so I was forced to go to my local Autozone. It wasn't until I got the 3rd replacement sensor installed that Sunday did the gauge finally start working properly. One of the 3 Autozone oil pressure sensors even caused the oil pressure gauge to work backwards... high indicated pressure at idle and low pressure at cruising rpms.
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Old 08-25-2012, 09:00 PM   #9
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Its a carquest part. Had autozone on there and returned it.
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Old 08-25-2012, 09:14 PM   #10
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Jeeps don't like non OEM electronics. I had to replace my TPS 4 times. The last one was from the dealer and it fixed my problem. Only thing is cant get the CEL to go off. Any suggestions? Not trying to hijack your thread BTW.
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Old 08-25-2012, 10:17 PM   #11
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Did you hook up a code reader to clear the codes. I have 4 grown kids and many cars to look after so I picked up a code reader for my self years ago. Very handy and not very expensive.
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Both as a commuter vehicle in NW, NJ
April 2012.downsized and now a 99er.
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Old 08-26-2012, 11:10 AM   #12
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Quote:
Originally Posted by BigGreenMachine View Post
Jeeps don't like non OEM electronics. I had to replace my TPS 4 times. The last one was from the dealer and it fixed my problem. Only thing is cant get the CEL to go off. Any suggestions?
Disconnect the PCM's driver's side connector for 2 minutes, then reconnect it and the code will be cleared. There are three connectors on the PCM, just disconnect the one closest to the driver's side. You could also disconnect the battery's negative lead for two minutes but that will also reset your clock and radio stations.

Note that while the code and CEL will be cleared after doing the above, it'll just come back if the root cause of the code and CEL hasn't been fixed.

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