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Author Topic: 1990 Pontiac Turbo Grand Prix - Tuned with videos - Questions?  (Read 364 times)

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Offline jongrappin

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1990 Pontiac Turbo Grand Prix - Tuned with videos - Questions?
« on: July 11, 2010, 06:28:51 PM »
I just completed installing a Topgun 160 Chip in my car. I have the epprom programmer and burned the chip myself. The car now sounds angry after the tune but I am experiencing a few issues now.... The HUD now does not work, it reads 0MPH as well now the dash reads 0mph. Check engine light is now on but there is no code to pull? other than these issues the car now seems to run much better. Also the engine has a very light miss like once every 20 seconds only around 1-2000 rpms.

Videos:

Before the tune:
http://www.youtube.com/watch?v=tnuE5rMiM9A

After the tune:
http://www.youtube.com/watch?v=d-dqhvIEYWo
http://www.youtube.com/watch?v=AM-sKS4_pGc
http://www.youtube.com/watch?v=WQBdnvVuC-c

Any advice on the tune?

Also if anyone is interested I can burn Chips for you, just PM
« Last Edit: July 11, 2010, 06:30:55 PM by jongrappin »
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Offline pontiac6ksteawd

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Re: 1990 Pontiac Turbo Grand Prix - Tuned with videos - Questions?
« Reply #1 on: July 11, 2010, 11:11:10 PM »
Sounds like the tune aint quite right, sounds like its a 5 speed tune. Not sure about the Speedo thing thou. Looks like you will have dueling needles just like mine..

« Last Edit: July 11, 2010, 11:13:29 PM by pontiac6ksteawd »
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Brian - Carpe Diem

I dont have to love my president, or any god, to love my country!!
More people have died in the name of "God" than in all wars combined thruout history..
90 Pontiac ASC McLaren Turbo Grand Prix 128k - 01 Pontiac Aztek GT 70k - 04 GMC Envoy XUV SLT V8 99k

Offline cobracmdr

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  • Lets turn up the boost and see what shakes loose
Re: 1990 Pontiac Turbo Grand Prix - Tuned with videos - Questions?
« Reply #2 on: July 13, 2010, 01:32:09 PM »
 :laugh: Welcome to tuning.  So I'm willing to bet you speedo issues are the VSS constants got hosed up.  Do a bin compare and check it out.

How about a log file at idle and a drive.  You can't really tell without that......need to see your int and blm and see what you did.

What are your mods?  I have plenty of tunes I could let you try send me a pm if you are insterested.
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1989 Turbo Grand Prix - missed very much!!!!
2010 Camaro 2SS/RS LS3 M6 12.01 @117 mph - Inferno Orange Metallic, long tubes, x pipe, Cat back, all 3" pipe 321 SS, vararam intake, LC-1, diy tune
01 Grand Prix GTP - 3.4 pulley, plog, k&n drop in, u-bend & resonator delete, tuned
03 Suzuki SV650N - zx10 shock, racetech springs/emulators, streetfighter

Offline jongrappin

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Re: 1990 Pontiac Turbo Grand Prix - Tuned with videos - Questions?
« Reply #3 on: July 15, 2010, 07:43:57 PM »
Current mods are:
K&N air filer
ford yellow top injectors
walbro 255 fuel pump
rebuilt transmission
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