Dear Previous Owner: Ever heard of.....

Started by RareGMFan, July 24, 2004, 01:01:38 AM

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RareGMFan

A TUNE UP?!?!?!  I got around to doing the plugs finally a couple weekends ago.  I knew it needed it, but until it was done, I didn't realize just how badly.  To my surprise (and yours too if you had seen some of the ghetto rigging on this car), they must have been done at least once, since there were Champions in there.  But I get the feeling that they were done ONLY once in its 14 year existence.  On a naturally aspirated 3.1, the plugs are supposed to be gapped at 0.45.  On the turbos, 0.35 to 0.40 tops.  Well...




....most of these came in at a gap of 0.60+!!!!!  Jesus, people!  It's not that expensive!  Just do it!  Changing the plugs has almost completely eliminated the cut-off issues I was having at WOT (the boost must have been blowing out the spark due to the enormous gap).  Now it kinda' stumbles when it hits full boost, but then sort of...."breaks through" for lack of a better term, and I can keep my foot on the pedal instead of having to back off.  It still isn't accelerating full force like it should, and it just now started having some idle issues.  It idles at 2K RPMs in park and nuetral, and around 1,500 in drive.  It's not a steady idle, either, as it goes up and down a bit while backfiring lightly.  :o  I've already done plugs, wires, ICM, coils, and the TPS.  I'm going to change all the fuel related things first (FPR, cleaned injectors, fuel filter, etc), which will also mean new intake gaskets if it's an issue of them leaking.  Hopefully that will take care of drivetrain issues, so I can get to the fun part.....exhaust!   :D

Anyways, just showing how piss poor some people take care of their cars.  Why is it that these types of rare cars always manage to find their way into the hands of people who don't care about them?  Then, after they're done beating them to oblivion and ruining them, people who actually do want them have to go through hell undoing their damage.   Bastards.   :2gunfire:   If you don't care about cars, BUY A BASE MODEL SUNFIRE!!!
1990 Pontiac Grand Prix SE McLaren Turbo (1 of 2725), 1989 Pontiac 6000 STE AWD (1 of 1376)
1990 Pontiac Grand Prix STE McLaren Turbo (1 of 1000), 2001 Pontiac Grand Prix GTP Special Edition



tyroelite

wow, I know the feeling... mine were the same way when I got my TGP.

Quote
If you don't care about cars, BUY A BASE MODEL SUNFIRE!!!

Ha, that just hit me funny, here's my friends base model sunfire:
http://www.domestictunerz.com/registry/record.php?member=Raskal
guess any car can be a tuner with the right mindset.

z284pwr

I must have got a lucky bird then.....

I got Red '90 with 145,000 miles for $3,200, BUT, crossover has been replaced, just had all the brakes plus PMIII, turbo been rebuilt, suspension has had new bushings, the interior is real nice with a 6 disc CD changer, new display, tires are like a year old....it just has miles due to the guy's wife driving it around the country while he was in the military.

I think we got very lucky on finding this one....

god910

That's a little steep IMHO, I paid $1600 for my last one.  90, black, tan leather, sunroof, switched over to vacuum brakes  :rock:  :headbang: JeffM X-over and TG160, only problems is a voltage drop in the harness for the starter (gets hot and won't turn over) and recently the fans won't turn on.  I think it's got about 130K, but can't remember.  A little body work to be done, but hey, value is in the eye of the buyer.  I love these cars.
1990 Turbo Grand Prix Black Sunshine
282 5 speed, Custom Chip, 1G DSM BOV, K&N on turbo, Centerforce Clutch, Accel 8.8 Wires, no kat, straight exhaust, TB bypass (200HP), Jeff-M cro$$over ;)
Jay Warfel
Muncie, IN
2nd TGP "TestBed" 90, Black JeffM TG160 & X-over, ractive filter, 15.21 @ 90 mph
2003 Sonic Yellow Subaru Impreza WRX  Turbo XS Stage 3
Perrin GT35R, 2.5 STi Block, JDM 6 speed swap underway.
Goal: 450 AWHP, mid 11's.

sleeperred90tgp

Humm, Shoot I paid well over 20k. Man I guess I really got screwed. :lol:

Don't even want to know what I've got in It. :cry:

Jud
Quickest TGP on this planet.

:cheers:FASTEST TGP AWARD given By TGPforums!:cheers:

            Congratulations JUD! Keep an eye on your rear-view mirror for TGPilot