is my opti bad

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Feb 23, 2011 | 11:03 PM

hot-trans am

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From: rochester ny

is my opti bad

hey a have a 96 trans am a4 wit header and bbk tb my car runs good till 4000 rpm then it bog out and miss could it be the opti car has 121000 miles on it

Feb 23, 2011 | 11:26 PM

onephatZ28

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I would say yes. if you get a new one just get one from GM.

Feb 24, 2011 | 12:02 AM

Fazz73jr

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Check your fuel pressure. could be your pump diying or cloged fuel filter.

Feb 24, 2011 | 08:47 AM

hot-trans am

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From: rochester ny

how would i check my fuel pump to see if it bad, also the guy i got it from had a msd box hook up to it. but wen i got it i unhook it. people told me they mess up the opti is that true

Feb 24, 2011 | 12:04 PM

mguidry629

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From: Baton Rouge, LA

To check fuel pump and most other fuel problems: $40 mechanical fuel pressure guage from an auto parts store and screw to the schrader valve to monitor fuel pressure.

If pressure is good, then you can eliminate fuel delivery problems.

Feb 24, 2011 | 10:06 PM

hot-trans am

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ok thank i will be doing that wat psi is good for my car

Feb 24, 2011 | 10:39 PM

SoxXpupPeT

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Quote:

Originally Posted by Fazz73jr

Check your fuel pressure. could be your pump diying or cloged fuel filter.

check everything before you go ahead and dump aload of cash into it.

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Feb 25, 2011 | 02:46 PM

onephatZ28

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From: Yucaipa,CA

check the ignition coil and Ignition Control Module

How to
http://shbox.com/coil/coil.html

Feb 25, 2011 | 02:55 PM

#10

onephatZ28

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From: Yucaipa,CA

replace your fuel filter
how to
http://shbox.com/1/fuel_filter.html

check fuel Pressure
how to
http://shbox.com/1/4th_gen_tech2.html#fuel_gauge

IF ALL IS GOOD THEN I WOULD SAY NEED NEW OPTI
hope this help you man good luck

Feb 28, 2011 | 09:20 AM

#11

hot-trans am

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From: rochester ny

everything else is good so i going to get a opti thank should i hook back up the msd box or not like poeple say it make the opti bad

Feb 28, 2011 | 10:59 AM

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davorocks

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everytime i go to the j/y i pull control modules from LT1's. before i spaced it off the head i would burn one up every few hundred miles, having symptoms VERY similar to yours. ever since i spaced it i have had no problems (knock on wood.)

Feb 28, 2011 | 12:49 PM

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1961ba427

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Will a bad opti always throw a code?

Feb 28, 2011 | 01:02 PM

#14

hot-trans am

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From: rochester ny

Quote:

Originally Posted by davorocks

like idk i bought the car the way it is and it has 121000mile but they put a msd box on it and then the car runs ok till u give it 1/2 gas then it bog at 4000rpm i dont know how to check the ICM but i keep that in mind

Feb 28, 2011 | 01:03 PM

#15

hot-trans am

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Quote:

Originally Posted by 1961ba427

Will a bad opti always throw a code?

Feb 28, 2011 | 02:04 PM

#16

davorocks

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Quote:

Originally Posted by hot-trans am

it bog at 4000rpm the ICM but i keep that in mind

mine drove great untill i gave it more throttle. i didnt pay attention to the rpms, just that it did not run good under a good load. its worth a shot if you can get one cheap. they are not cheap new.

Feb 28, 2011 | 03:16 PM

#17

1961ba427

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Wasn't hi-jacking....I was thinking a reply to my question may be of some benefit to the OP. Seems like a reasonable point to a post titled: IS MY OPTI BAD?

Feb 28, 2011 | 04:25 PM

#18

hot-trans am

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From: rochester ny

Quote:

Originally Posted by davorocks

mine drove great untill i gave it more throttle. i didnt pay attention to the rpms, just that it did not run good under a good load. its worth a shot if you can get one cheap. they are not cheap new.

thank im think ima see if i can get one from the j/y and try it