2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

spark plugs fouled to SH*T.. and poor mans compression test

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Old Jun 23, 2012 | 11:52 PM
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spark plugs fouled to SH*T.. and poor mans compression test

did a poor mans compression test today and got 3 big ole' fat healthy swooshes , and hadn't noticed the plugs until after i was done with the test and found this.




i thought it was pretty damn bad and decided it would be best(no sh*t) to change them out. anyone else get plugs like these? they should only be a couple thousand miles old.
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Old Jun 24, 2012 | 07:56 AM
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Doesn't look bad to me, a wire brush with knock most of that carbon off. Do you pre-mix or run the OMP? What's your driving style?
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Old Jun 24, 2012 | 12:08 PM
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Old plug looks great to me. Keep driving it.
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Old Jun 24, 2012 | 12:31 PM
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dosent look bad at all... wirebrush and a shot of brake clean and back on the road!
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Old Jun 24, 2012 | 02:53 PM
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brush them off and reuse them or keep them for spare.
here,look.they are not as bad as some of the regular signs of fouling:
http://www.ngksparkplugs.com/tech_su...qs/faqread.asp
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Old Jun 24, 2012 | 05:57 PM
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i mostly changed them out for my own peace of mind.. i just didn't want to throw those back in.

i have been having this weird starting issue where it starts right up, AWS, idle drops, then dies. i have to bounce the throttle for a couple seconds until it holds idle.. thought it might have been plugs fouled from running rich. but am now swayed towards MAF or TPS adjustment
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Old Jun 24, 2012 | 11:33 PM
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Actually could be a thermowax adjustment issue.
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Old Jun 25, 2012 | 07:30 PM
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I thought that, but kinda ruled it out since the problem just came out of nowhere.. like one day it happened, and never stopped. Also, I'm leaning more towards TPS since sometimes exiting the highway it will to the 1200 to 1500 idle jump.

I know how to adjust tps, but don't have a meter to know whether I'm doing it right
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Old Jun 25, 2012 | 07:57 PM
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i have the same exact problem come up BeachFC and havent attempted to resolve it yet, keep me posted heh
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Old Jun 25, 2012 | 10:56 PM
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also, i have no clue how to **** with any of that thermowax, cam roller??, fast idle cam??? ****

Last edited by beachFC; Jun 25, 2012 at 11:08 PM.
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Old Jun 25, 2012 | 11:57 PM
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here is a video(i don't know what the hell happened, but it came out horribly shitty).. i was kinda trippin, because usually it dies right at 0:30 seconds in the video.. and i mean usually, as in EVERY SINGLE ******* TIME except in the video... VERY ****** weird .. i was just messing around with the throttle right where it would have to be adjusted from, maybe i accidentally adjusted it kinda correctly?

on cold starts the car used to go straight up to 3k exactly, and then fall to 1.5k and slowly trickle down as the car warmed up. now it goes to around 2.8k and then falls to 700, and then just dies out. And then on the second try, it starts right up, and usually holds a good idle..

the idle IS a little crazy. it's different at every single red light or stop sign.. anywhere from 300 rpm to 1500 rpm, but 70% of the time stays between 500 & 800

this is a video of a cold start. it usually dies after AWS, but decided not to purely out of spite >:l


Last edited by beachFC; Jun 26, 2012 at 12:01 AM.
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Old Jun 26, 2012 | 09:29 AM
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have you played with anything, unplugged/replugged anything recently before this started happening?
did you hit anything? let a woman drive your car? lol
get a meter and check ur tps properly in accordance with FSM.
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Old Jun 26, 2012 | 02:02 PM
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Nope, The only thing I did recently was take the MAF off and see if anything was wacky in there, but that was well after the problem arose.. and everything seemed fine in there.

I just got a CEL last night for tps.. sooo I definitely need to adjust that. Sucks, because I'm horrible at things like that

Last edited by beachFC; Jun 26, 2012 at 02:19 PM.
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Old Jun 29, 2012 | 02:40 PM
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Anyone?
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Old Jun 30, 2012 | 12:29 AM
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Yes, that's how we all start. Then we either download a copy of the FSM and LEARN, pay a shop to fix it, or hang around the forum wishing for a miracle...

Originally Posted by beachFC
also, i have no clue how to **** with any of that thermowax, cam roller??, fast idle cam??? ****
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Old Jun 30, 2012 | 12:46 AM
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Originally Posted by beachFC
on cold starts the car used to go straight up to 3k exactly, and then fall to 1.5k and slowly trickle down as the car warmed up. now it goes to around 2.8k and then falls to 700, and then just dies out. And then on the second try, it starts right up, and usually holds a good idle..
This indicates to me that your thermowax is not operating correctly.

The other info indicates that your TPS is out of spec or broke.

First thing to do is verify the thermowax is doing what it should. The thermowax needs warm coolent running throgh it to allow the idle to drop below 1000. If your car is cold and the idle drops from 3k to 700 right after the AWS stops then it is stuck in the warm position.

The tps can get out of spec in time. It could be because of several reasons. Sometimes you can readjust it and sometimes it is just broke. You have to try to dial it in and see if you can.
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Old Jun 30, 2012 | 03:19 AM
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Originally Posted by cone_crushr
Yes, that's how we all start. Then we either download a copy of the FSM and LEARN, pay a shop to fix it, or hang around the forum wishing for a miracle...
uhhh, not hoping for a miracle o_O . simply searching for input, which i have received. i'm not retarded, i've tried multiple things to fix it, tps, maf, grounds, wiring, etc. i guess i have to take it to a shop..

Originally Posted by 13bpower
This indicates to me that your thermowax is not operating correctly.

The other info indicates that your TPS is out of spec or broke.

First thing to do is verify the thermowax is doing what it should. The thermowax needs warm coolent running throgh it to allow the idle to drop below 1000. If your car is cold and the idle drops from 3k to 700 right after the AWS stops then it is stuck in the warm position.

The tps can get out of spec in time. It could be because of several reasons. Sometimes you can readjust it and sometimes it is just broke. You have to try to dial it in and see if you can.
yeah, after a few weeks of searching 7 year old threads, i've concluded it can only be a few things(as stated^^^)
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