Car runs like crap after cutout install?
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From: Hurricane Alley
Car runs like crap after cutout install? Here is the deal, put a T-Rex in my 02 WS6, and had it dyno tuned. Ran great! Still had some more bolt on stuff to get at the time (ported TB, pulley, cutout) and after I got all that installed, gradually over a month or so, the car seems to be running worse and worse. Before, it started up and idled right away upon cold start, now, i have to give it a tad bit of gas to catch idle first. Also the car is breaking up pretty bad during normal acceleration, and even at cruising, at certain speeds/rpms. Thought maybe a bad o2 sensor, but I got under there, and all seem to be fine, and no codes have been thrown.
Could having the car tuned before the cutout, and now having a cutout open all the time cause the car to run like crap due to the lack of back pressure, which it wasnt tuned for? I was planning on getting a retune anyway, I have since added the TB, MAF Ends, pulley, and was planning on going with a true dual setup. I just wanted to get some of your opinions, just in case this isnt just a tuning issue.
Thanks!
Could having the car tuned before the cutout, and now having a cutout open all the time cause the car to run like crap due to the lack of back pressure, which it wasnt tuned for? I was planning on getting a retune anyway, I have since added the TB, MAF Ends, pulley, and was planning on going with a true dual setup. I just wanted to get some of your opinions, just in case this isnt just a tuning issue.
Thanks!
Thread Starter
TECH Apprentice
iTrader: (14)
Joined: Oct 2003
Posts: 334
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From: Hurricane Alley
It's a Jantzer. I checked it last week when I installed the MAF ends... by check, i mean make sure the blade was closed at idle and WOT when mashed to the floor.
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From: Miami
Ported TB, MAF Ends and pulley is enough to throw things out of whack.
Same idle issue happened to me when I had my car tuned for a cam-only setup, then I swapped the TB for a ported TB after the tune. Car has been retuned (and modded further) since and runs fine.
I seriously doubt your cutout has anything to do with the problem.
Same idle issue happened to me when I had my car tuned for a cam-only setup, then I swapped the TB for a ported TB after the tune. Car has been retuned (and modded further) since and runs fine.
I seriously doubt your cutout has anything to do with the problem.
