Thread: 2000 gtp multiple problems....HELP

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  1. #1 2000 gtp multiple problems....HELP 
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    Last night my 2000gtp started miss firing terribly while i was driving....it sounds like it is starving for fuel or ...clogged cat....but what has made this difficult is my car has not thrown a CEL..while the car is spuddering while i drive ALL of my lights are flickering on my gauge cluster, the fuel gauge falls to zero....and my tach drops off...ive already swapped pcms and checked the icm for corrosion along with my battery...what else could be causing this problem? Im completely lost...
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  2. #2 Re: 2000 gtp multiple problems....HELP 
    Moderator dsmuts's Avatar
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    Crank sensor possibly. Try pulling the plugs and see what they look like.
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  3. #3 Re: 2000 gtp multiple problems....HELP 
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    Quote Originally Posted by dsmuts View Post
    Crank sensor possibly. Try
    pulling the plugs and see what they look like.

    Ok i will check...i just replaced the plugs about a month ago...i installed the new 3.4 pulley and got the ngk tr6 plugs...
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  4. #4 Re: 2000 gtp multiple problems....HELP 
    Moderator dsmuts's Avatar
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    What other mods do you have?
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  5. #5 Re: 2000 gtp multiple problems....HELP 
    Killa Bee Scottydoggs's Avatar
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    i would think thats the ignition switch and harness has gone bad.

    the flashing cluster lights is a sign on a regal that that switch has gone bad.

    not to bad to change.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  6. #6 Re: 2000 gtp multiple problems....HELP 
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    Thats all as of now....other then cheap exhaust...cherry bombs i think....i just bout it a few moths ago...i just took it to the store and it wont hardly idle...it idles like it has a huge cam in it...i can also smell something hot....
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  7. #7 Re: 2000 gtp multiple problems....HELP 
    Killa Bee Scottydoggs's Avatar
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    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  8. #8 Re: 2000 gtp multiple problems....HELP 
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    The video was helpful but mine actually flashes intermittently while im goin down the road....almost as if someone is cutting the power while im driving...yet with all of this going on, the idling and lights, why am i not getting any codes or check.engine lights
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  9. #9 Re: 2000 gtp multiple problems....HELP 
    Moderator dsmuts's Avatar
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    You need to go back to the stock pulley before you blow your car up if you haven't already. You need more mods before you slap a 3.4 pulley on it.
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  10. #10 Re: 2000 gtp multiple problems....HELP 
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    Alright....what else do i need for mods? I forgot tp tell you i also have a cai...
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  11. #11 Re: 2000 gtp multiple problems....HELP 
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    Depends of how much KR you have but i'd throw some headers on there.
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
    08 g8 gt cam exhaust 11.87@118
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  12. #12 Re: 2000 gtp multiple problems....HELP 
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    Well i just drove home from work...car ran like ****...when i got home.i looked under the car at the CAT...it was glowing light red ubefore and after the CAT...should the actual cat be glowing red to.confirm that its clogged or do u guys think minw is still clogged??
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  13. #13 Re: 2000 gtp multiple problems....HELP 
    Killa Bee Scottydoggs's Avatar
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    thats a clogged cat if its glowing cherry red.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  14. #14 Re: 2000 gtp multiple problems....HELP 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Agreed, the cat converter should never be glowing red.

    And im with the other guy on the pulley situation.

    Having a 3.4 on there is just going to cause you to chip a piston and need a new motor. I'd advise you to return to stock pulley size until correct flow mods have been added.

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  15. #15 Re: 2000 gtp multiple problems....HELP 
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    Ok...now can i just cut that cat out and replace it with a straight pipe? I know i sound pretty dumb but im just used to the old school stuff lol and im on an EXTREMELY limited budget...
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  16. #16 Re: 2000 gtp multiple problems....HELP 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    Sure you can, but you will get a check engine light for the rear o2 sensor because it will say the cat is no longer there.

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  17. #17 Re: 2000 gtp multiple problems....HELP 
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    Ok...i can deal with the light for a lil bit as long as it doesnt affect the driveability of my car...
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  18. #18 Re: 2000 gtp multiple problems....HELP 
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    Iguess i still dont understand why my gauges are tweeking out while i drive...is it the cat causing this? Possibly cause the car to shut down and reset the gauges?
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  19. #19 Re: 2000 gtp multiple problems....HELP 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    wont be the cat.

    you have a power/ground/wire/fuse/connector/electrical problem for the gauges to do that.

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  20. #20 Re: 2000 gtp multiple problems....HELP 
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    Just cleaned every ground i could find, still running terrible....starting to lean towards the ignition switch...car just died during the test drive...went to restart it and it just clicked....reset the key to off after i tried turning it a few times and car fired right up...
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