92 Sc sputtering issue
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Driver School Candidate
Joined: Jul 2011
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From: Fl
92 Sc sputtering issue
I've been driving my 92 Sc for some time now with everything working normally power and accelration quite fine. The other day i noticed that at idle it would bogg down and jump up. I thought instantly, " vaccumm leak" changed out some hoses and it idled better but still would do it. I didnt think to look for codes because there was no cel on yet I tried anyways with a continuous blink, I took to be normal if there's no codes on. I took her for a spin and during first and second gear it would do it while driving. Imagine a vaccumm leak idle while driving then it picks back up and does it again untill im over 45% throttle. Im fresh out of ideals henceforth it does it while driving as well. And I might add its bad during start off even on throttle , goes to 300-500 rpms then drives fine. any suggestions would help not wanted to replace everything if not needed.
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its 1 of two things, If it happens at idle when its cold or when you turn the wheels its your IAC either out of spec or needing to be cleaned.
if the stutter only happens under load then its your tps
ive had both problems....
also why did you replace the whole tb assembly? seems pointless when you could just unscrew 4 screws and have both the IAC and TPS off in minutes
if the stutter only happens under load then its your tps
ive had both problems....
also why did you replace the whole tb assembly? seems pointless when you could just unscrew 4 screws and have both the IAC and TPS off in minutes
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Thread Starter
Driver School Candidate
Joined: Jul 2011
Posts: 27
Likes: 0
From: Fl
@V8drummer: I did check the resistnace on the tps, which after reading today via internet I adjusted it wrong. To be honst i didn't think to check resistance on the IAC I grabbed one from a junkyard that was running figured it'll be a quick fix. I have a 92 300 I'll have pics up soon as I get the right angle. and I also tried that as the first step (tb cleaning) thats what lead me to purchase another.
@SJ408: I thought It would have been an open and close case basically, the throttle body was 100, that hurt later. And it actually does both whether warmed at OT or cold. So i will most definitely take another look at this which thanks to both of you I have a better perspective on.
@SJ408: I thought It would have been an open and close case basically, the throttle body was 100, that hurt later. And it actually does both whether warmed at OT or cold. So i will most definitely take another look at this which thanks to both of you I have a better perspective on.
Thread Starter
Driver School Candidate
Joined: Jul 2011
Posts: 27
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From: Fl
Next step i did a change not to long ago, Im waiting untill i have a true few hours to devote to it and go from there. I'll be posting my findings once everythings cleared which will hopefully be soon
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