 Diagnose my sick engine.... |
 Jun 3, 2012 - 6:07 PM
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Enthusiast  Joined Sep 27, '10 From pittsburgh Currently Offline Reputation: 4 (100%)  |
Half way through the 2nd day of this last race my engine started to sputter in the high RPM ranges. 5k+ After service and the engine cooled down it came back to life. About 6 miles into a 10 mile stage the high RPMs started sputtering again.
Then it kept getting worse because I had two 12 miles stages right after that. As of right now, the car will not idle, if I give it gas the car runs fine even into the higher RPMs until it heats up. I thought it might be spark, but i'm getting spark at least just checking it in my garage. I also did a compression test and the numbers are good 190/180/180/180 The engine is a 3sge. This post has been edited by czwalga: Jun 3, 2012 - 6:13 PM -------------------- -93 Rx7, Turbo 6.1L v8, 725rwhp/760rwtq
-95 Celica GT Rally Car - 3sge/AWD -10 F150 Always buying stock wheels... PM me if interested in selling. |
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Jun 3, 2012 - 6:12 PM
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 Enthusiast Joined Aug 23, '11 From kenton ohio Currently Offline Reputation: 14 (100%) |
Clogged fuel filter or a vacuum leak?
-------------------- 95 gt coupe, v6 swap weekend toy
99 gt hatch beams swapped wife's 94 st hatch my daily driver http://www.6gc.net/forums/index.php?showtopic=82235  n |
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Jun 3, 2012 - 6:32 PM
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Enthusiast Joined Sep 27, '10 From pittsburgh Currently Offline Reputation: 4 (100%) |
QUOTE (kurt95gt @ Jun 3, 2012 - 6:12 PM)  Clogged fuel filter or a vacuum leak? Hmm.... vacuum might explain it. Obviously explains the idle, but wouldnt explain the upper RPM range, until I remembered that the 3sge VVT system is activated by vacuum. I'll have to go over all the vacuum lines tomorrow. -------------------- -93 Rx7, Turbo 6.1L v8, 725rwhp/760rwtq
-95 Celica GT Rally Car - 3sge/AWD -10 F150 Always buying stock wheels... PM me if interested in selling. |
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Jun 3, 2012 - 6:44 PM
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 Enthusiast Joined Apr 18, '06 From Calgary, Canada Currently Offline Reputation: 37 (100%) |
Shouldn't be VVT in a 3rd gen 3SGE; just ACIS.
Beams has the VVT - no? I'm out of er right now too. -------------------- |
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Jun 3, 2012 - 7:41 PM
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Enthusiast Joined Sep 27, '10 From pittsburgh Currently Offline Reputation: 4 (100%) |
QUOTE (KAOS @ Jun 3, 2012 - 6:44 PM) Shouldn't be VVT in a 3rd gen 3SGE; just ACIS. Beams has the VVT - no? I'm out of er right now too. Yeah the ACIS is what I meant. -------------------- -93 Rx7, Turbo 6.1L v8, 725rwhp/760rwtq
-95 Celica GT Rally Car - 3sge/AWD -10 F150 Always buying stock wheels... PM me if interested in selling. |
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Jun 4, 2012 - 4:24 PM
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Enthusiast Joined Sep 27, '10 From pittsburgh Currently Offline Reputation: 4 (100%) |
No vacuum leak. The more I think about it the idle would go up not down.
-------------------- -93 Rx7, Turbo 6.1L v8, 725rwhp/760rwtq
-95 Celica GT Rally Car - 3sge/AWD -10 F150 Always buying stock wheels... PM me if interested in selling. |
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Jun 4, 2012 - 4:47 PM
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Enthusiast Joined Sep 27, '10 From pittsburgh Currently Offline Reputation: 4 (100%) |
Welp.... I just gave the idle screw on the throttle body as good as new.... although something is lurking.
It's also revving fine over 5k now, but I only had the problems after hammering on the engine for like 5 miles straight... -------------------- -93 Rx7, Turbo 6.1L v8, 725rwhp/760rwtq
-95 Celica GT Rally Car - 3sge/AWD -10 F150 Always buying stock wheels... PM me if interested in selling. |
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