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Header Problem!!!!

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Old Sep 19, 2006 | 01:38 PM
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gmmastertech9825's Avatar
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Default Header Problem!!!!

I just installed dyna thech lt's on my 99 firebird ls1 6 speed car
they are stepped 1 and 3/4 to 1 and 7/8 with 3 and 1/2 colectors they are a race style header so they have no a.i.r. tubes on them so i removed the a.i.r. system off the car i also removed my e.g.r. system i have o2 sims in the back. the vehicle needless to say has egr and air codes but it runs horrible it spits sputters misses and boggs i cleaned the mass air flow sensor with the special cleaner and it runs so much better i also checked my plugs and my wires i am wondering if anyone has any other advice fotr me if your advice is tuning please let me know what to tell the tuning person i want done to ensure i get exactly what will make the car run correctly any help is appricated thanks!!!
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Old Sep 19, 2006 | 01:43 PM
  #2  
TORCHD 02 TA's Avatar
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Originally Posted by gmmastertech9825
I just installed dyna thech lt's on my 99 firebird ls1 6 speed car
they are stepped 1 and 3/4 to 1 and 7/8 with 3 and 1/2 colectors they are a race style header so they have no a.i.r. tubes on them so i removed the a.i.r. system off the car i also removed my e.g.r. system i have o2 sims in the back. the vehicle needless to say has egr and air codes but it runs horrible it spits sputters misses and boggs i cleaned the mass air flow sensor with the special cleaner and it runs so much better i also checked my plugs and my wires i am wondering if anyone has any other advice fotr me if your advice is tuning please let me know what to tell the tuning person i want done to ensure i get exactly what will make the car run correctly any help is appricated thanks!!!

hmm i dunno i knwo that if you pulled the EGR off i knwo that it still runs fine you jsut hav eth SES.. i wonder if you did not A) Gap the plugs correctly?? .055" - .060" maybe the wires are not sitting on the plugs. did you hear CLICK when you put the wires on the coil and plugs??? go from there.

Good Luck
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Old Sep 19, 2006 | 01:44 PM
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HeapaShifter's Avatar
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It's almost got to be plugs or wires. Removing the EGR and AIR shouldn't affect drivability. Maybe you cracked a spark plug when putting the headers in.
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