Just a tune?

ArabMoFo

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So I have a 95' Cobra. The mods are listed on my profile. I just upgraded to the proper 42lbs PMAS MAF and 42lbs fuel injectors. For the most part everything went smoothly. Now that everything is done I went through the proper steps. I started the car, fired up on the first turn of the key. Obviously it took a moment to adjust idle. After about 10 minutes the idle was perfect. I back up, drove around my neighborhood, at first a hose came lose and it started backfiring rapidly anytime throttle was applied, fixed that issue. No more backfiring.

The car is driving descent considering it has not yet been tuned. It does occasionally cough up a very quiet pop (backfire), and I obviously dint want to jump on the gas till everything is sorted out. The time I went half throttle the car hesitated badly, sputtered, and I quickly got off the gas.

After coming to a stop the engine rested at about 1800rpm and stayed till I shut the engine off. Started it back up, took a minute to find idle and is now idling funny.

Question being. Does it just need a tune or is there more to fix before throwing money at a tune? Keep in mind that after having heads, cam, intake, supercharger, and all the basic bolt ons - it was tuned but with 30lbs injectors and a 24lbs injector with some mafia chip connected to the MAF to "fool" the computer into thinking it was the proper MAF. Was a horrible tune I might add.


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Traidmarx

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i would say yes...especially if you're saying it was a horrible tune..but these 94-95 computers are so sensitive anyway, any changes can affect how it runs. I've seen my friends 95 GT pick up 3 tenths in the 8th mile and 3.5 mph off just a good tune, and he's only got bolt on's, 24 lb injectors, and typhoon intake.
 
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i have alot of bad things about the 94-95 cobra/mustang computers when it comes to performance, Ive heard the best thing to do when it comes to performance is get like a foxbody gt computer and work from there on the tunes and performance
again quote me if I'm wrong its what Ive heard
 

OnyxCobra

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nothing really wrong with 94/95 computers, they are more advanced than the fox computers and once you get it tuned properly there is no problem. I personally wouldn't bother with switching and just get a dynotune.
 

LAFENATU

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OnyxCobra said:
nothing really wrong with 94/95 computers, they are more advanced than the fox computers and once you get it tuned properly there is no problem. I personally wouldn't bother with switching and just get a dynotune.

This.
 

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