10 most common issues with the TGPs

Started by tyroelite, March 29, 2006, 09:58:00 PM

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tyroelite

Okay, so since there is soooo much information on these forums and questions are often asked more than once, I'm thinking of creating a top 10 list of the most common problems and their fixes with links back to important threads for my website.  What I'm looking for is from the people who have been around this site for a while, what would you guys say are the top 10 most common problems?  I'm thinking the crossover, the PMIII leaking... what else?  Even the stupid little things like the speakers blowing out and whatnot.

(Anybody who wants to post their sollutions with the problems are allowed too ;) )

Prospeeder

Cross over pipe, Power master III Internal seal leaks, Accumulator, pressure switch, motor relay, rear leaking, lol! Rear calipers siezing, door handles breaking, upper dog bones wearing out, oil return line collapsing, Power seats Occasionally stop working, Keyless entry never fuckin workin, or occaisoanlly works, just had pathetic range, thats all i can think of, the Powermaster III, some of the stuff isnt too common, but the Accumulator and Leaking is
1990 TGP Chipped RU-1390 K&N
2001 Audi S4 Stage 2
1999 VW Beetle
1997 BMW 740iL

GangstGP

dogbones: 8 washers from hardware store

door handles: remove cover, unclip, pop off and thread out adjuster, replace.

door locks binding: remove panel, spray with tri-flow, replace.
daily driver: 1990 Turbo Grand Prix 180k miles
backup car: 1990 Turbo Grand Prix 118k miles
spare parts: TGP motor and tranny from a red '89

Prospeeder

8 washers, huh? Got to napa and buy new ones, take the bolts off on and replace, then the other
1990 TGP Chipped RU-1390 K&N
2001 Audi S4 Stage 2
1999 VW Beetle
1997 BMW 740iL

sleeperred90tgp

Most common problem is stalling missing and eratic idle. :icon_sad:

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

Prospeeder

God my idle sucks, ill leave it runing to go say hi to a friend, and i can hear its idle just all over the place and stumbbling and poor
1990 TGP Chipped RU-1390 K&N
2001 Audi S4 Stage 2
1999 VW Beetle
1997 BMW 740iL

tyroelite

what would be the best way to test through a rough idle though? its a pretty general problem... maybe plugs/wires, vac lines, sensors, x-over...? do any of you guys have a flowchart type of idea to fix it?

TGPilot

#7
This 10 most common problems can get pretty hairy man although it is a GREAT idea.

The problem I see with a flow-chart is the fact that one of 3 sensors can easily mask another problem or give a false trouble which has nothing to do with what actually is wrong.

What most need to do as soon as they buy a TGP is replace ALL THE SENSORS (WITH GM PARTS!), ensure it has a good x-over and 02, ohm the injectors, and test the FPR. Then start looking for vacuum leaks.

If it has compression and the turbo isn't seized she should be running pretty good especially with the proper chip tweeks. :icon_cool:

flybynite

Quote from: sleeperred90tgp on March 30, 2006, 07:27:15 PM
Most common problem is stalling missing and eratic idle. :icon_sad:

Jud
If you can rule out all things mechanical its in the chip and can be fixed easily with a few tweeks in the right area.Later
1989 TGP Pace Car
1990 TGP Red/Tan Leather

Prospeeder

Quote from: flybynite on March 31, 2006, 08:15:02 AM
Quote from: sleeperred90tgp on March 30, 2006, 07:27:15 PM
Most common problem is stalling missing and eratic idle. :icon_sad:

Jud
If you can rule out all things mechanical its in the chip and can be fixed easily with a few tweeks in the right area.Later

ya ok, I got my chip and it didnt help much at all, bad pipes and faulty injectors fuck an idle up pretty bad
1990 TGP Chipped RU-1390 K&N
2001 Audi S4 Stage 2
1999 VW Beetle
1997 BMW 740iL

flybynite

Quote from: Prospeeder on March 31, 2006, 02:14:26 PM
Quote from: flybynite on March 31, 2006, 08:15:02 AM
Quote from: sleeperred90tgp on March 30, 2006, 07:27:15 PM
Most common problem is stalling missing and eratic idle. :icon_sad:

Jud
If you can rule out all things mechanical its in the chip and can be fixed easily with a few tweeks in the right area.Later

ya ok, I got my chip and it didnt help much at all, bad pipes and faulty injectors frick an idle up pretty bad
Like I said if you can rule out all things MECHANICAL its in the chip.I dont know who's burning your chips but your putting alot on there shoulders if you expect there first burn to be perfect.With my experience it takes several attempts to get it dialed in just rite.Thats what data logging is for...Later
1989 TGP Pace Car
1990 TGP Red/Tan Leather

TGPilot

Quote from: Prospeeder on March 31, 2006, 02:14:26 PM
ya ok, I got my chip and it didnt help much at all, bad pipes and faulty injectors frick an idle up pretty bad

Do you still have the leaking cross-over on your car? :icon_eek:

Prospeeder

Quote from: flybynite on March 31, 2006, 03:42:07 PM
Quote from: Prospeeder on March 31, 2006, 02:14:26 PM
Quote from: flybynite on March 31, 2006, 08:15:02 AM
Quote from: sleeperred90tgp on March 30, 2006, 07:27:15 PM
Most common problem is stalling missing and eratic idle. :icon_sad:

Jud
If you can rule out all things mechanical its in the chip and can be fixed easily with a few tweeks in the right area.Later

ya ok, I got my chip and it didnt help much at all, bad pipes and faulty injectors frick an idle up pretty bad
Like I said if you can rule out all things MECHANICAL its in the chip.I dont know who's burning your chips but your putting alot on there shoulders if you expect there first burn to be perfect.With my experience it takes several attempts to get it dialed in just rite.Thats what data logging is for...Later

Oh i thought it said that nothing mechanical can make the bad idle its just the chip, sorry.

And ya i still have an original pipe, BUT Im going in for a job interview tomarrow so hopfully i can get cash flow and relpace it
1990 TGP Chipped RU-1390 K&N
2001 Audi S4 Stage 2
1999 VW Beetle
1997 BMW 740iL

sleeperred90tgp

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

Prospeeder

Quote from: sleeperred90tgp on March 31, 2006, 08:27:37 PM
Hope you get the job. ;)

Jud

Thanks, i hope so too, its at Papa Murphy's wich is nice
1990 TGP Chipped RU-1390 K&N
2001 Audi S4 Stage 2
1999 VW Beetle
1997 BMW 740iL