mjgjr72

ok i have installed magna charger and love the results, but when i start the truck the idle starts at 2k then drops down, the ses came on and only found one code for high idle, cleared code and ran truck and light came back on next day, same code, truck runs awsome and due to the fact that it no longer fits in garage due to lift and tires and the cold weather i haven't had very much oppurtunity to check it out since install, but could not see anything obvious, anybody have any ideas what i could have screwed up

Flyer

iTrader: (1)

Maybe you missed a plug on the throttle body, or maybe the MAP sensor. If everything seems plugged up right, maybe a vacuum leak. Get a can of carb cleaner or WD40 and se if you can find a vacuum leak.

BlownChevy

iTrader: (20)

Year make and model of truck please

mjgjr72

2000 chevy silverado 5.3L

BlownChevy

iTrader: (20)

With that said, I would look closely at the fuel pressure regulator. Remove and reinstall it with PLENTY of lube (Vaseline) on the o-rings.


This is a common problem with new installs, the little black o-ring gets kinked, or pushed in wrong and it causes the problems you are describing. IF that does not work, you need to look for a vacuum leak like Flyer recommended. Keep us posted.

PS dont be shy with the Vaseline......trust me on this one

BlownChevy

iTrader: (20)

You should also make sure your TB gasket is intalled properly. They are easy to put on backwords, this will cause a vacuum leak also.

BlownChevy

iTrader: (20)

Another thing to check if the above does not pan out.

You may have ripped one of the intake gaskets when setting the blower down on the heads.........This is the LAST thing to check

mjgjr72

had no vas used silicon lube, may be a few days before i get a chance to check, there is 4" of snow out there and like i said it don't fit in the garage no more, thanks for the advise i'll let ya know.

mike

BlownChevy

iTrader: (20)

OK let me know if you need any other help. I happen to know a guy that works at MagnaCharger I am pretty sure your problem is in the Fuel Pressure regulator....but I am wrong every once and a while.

mjgjr72

well tell them they make a nice kit, the first s/c kit i got from powerdyne was a peice of junk, the bolts where the wrong thread, brackets didn't fit right, serp belt was wrong and the head unit locked up 10k down the road, on a desolite stretch of highway in vermont in the middle of winter, the magna charger puts it to shame, for install and performance, i am very happy with and a little amazed at the performance increase