could it be the tps?

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Sep 11, 2009 | 09:54 AM

sdotlog

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could it be the tps?

Lol. One thing after another. So I'm about to make a turn into my bloxk and car just starts to rev up and back down. I park it to let it idle and sits like at 1300-1500rpm and surges up and down. Read a few threads and I think that my problem is similar? Haven't checked the fp, ill check that when I get off of work.

Sep 11, 2009 | 03:24 PM

RamAir95TA

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Sounds more like the IAC to me.

Sep 11, 2009 | 04:55 PM

shbox

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A scanner will tell you right away if it is a TPS problem. You can watch the IAC, too. Vacuum leaks can cause idle problems, as well.

Sep 11, 2009 | 11:08 PM

sdotlog

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damn.yea new tps didnt do anything, tps mod on stock ported tb benefit any? no vacuum leaks for sure. i guess i go pick up an iac from the autozone by the house.

Sep 11, 2009 | 11:28 PM

sdotlog

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ugh... googling around and reading stories of people w/ almost similar scenarios, and led them to replacing the coil, then leading to the opti!!! getting worried here. new msd wires and new plugs be the cause of anything? i mean ran a few days just fine, and all the sudden this happens?

Sep 12, 2009 | 04:48 AM

riceburnerZ28

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scan for codes first!

Sep 12, 2009 | 12:14 PM

sdotlog

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Arg.... only scanner I had avail to me was lost. Don't want to limp it in and have it jus die in the parking lot .

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Sep 12, 2009 | 06:31 PM

sdotlog

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well.... heres a quick update. the car is no longer wanting to start.. keeps turning over but not starting... =(

Sep 13, 2009 | 09:42 AM

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sdotlog

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anyone have a clue or idea? its my dd, i cant have it down for too long again

Sep 13, 2009 | 10:07 AM

#11

rat93

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Quote:

Originally Posted by sdotlog

still learning, but i just replaced my opti, and my car was doing the SAME thing. it would surge real bad at idol (not all the time, but somewhat consistantly). no vaccum leaks, new tps, nothing. now it runs fine with the new opti. just my .01

Sep 13, 2009 | 10:26 AM

#12

sdotlog

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Quote:

Originally Posted by rat93

thats what im leaning towards... you do a rebuild or complete opti replacement?

Sep 14, 2009 | 05:14 AM

#13

sdotlog

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well, i guess im going to find an oem coil, and order the whole ac delco opti.

Sep 14, 2009 | 04:52 PM

#14

sdotlog

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well replaced coil so far, and helped it from dieing when it would warm up and dropped idle a little bit. now just the surging is left. have an iac on order. if that doesn't cure it gonna have to swallow that bill for that damn opti

Sep 14, 2009 | 04:56 PM

#15

the_merv

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Sounds like the OPTI..

Sep 14, 2009 | 06:25 PM

#16

sdotlog

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wow..... there was a wire in one of the plugs on the pass side of the intake came out of it's splice. replaced the pigtail plug and spliced the wires together properly and car is running fine. borrowed scanner and it pulled p0122 and p0100 and now its running fine and no codes so far! crossing fingers and hope it'll be fine. Only thing left is it would pop through the intake sometimes... means it's running lean if im correct?