UPDATE: I have replaced Water Thermosensor which didn't show ohms according to the manual. That little thing costs 30 bucks at auto zone. Anyway, Idles better, It doesn't run as rich, however stupid hesitation or whatever you call it is still there.



I also notice that when it happens, on my PFS keypad, on the o2 sensor reading it shows 0 when that occurs. As if there is no fuel, like a fuel cut. IT's really anoying as it's trying to pull but then it won't and then it will. I was runing 7psi and no hesitation, 8 psi spike and it happens. I know 7psi is stock safety boost, what else could it be. I just wasted 30 bucks



Amel

 

nobody has any other ideas?



Amel

 

unhook the o2 sensor connector, then go for a ride and see if the hesitation goes away.

 

Well, I did that not too long ago, hesitation was still there. Then after like 5-10 minutes check engine light came on with the feedback crap and it was even worse.



Also, I Checked Fuel pump pressure. When GND and F/P are shorted i get 38psi. When Idling i get 32.



Also, for some reason I can't raise boost at all. If i use low or high boost and turn it up on profec B, no difference. I only get 7psi and when it spikes to 8 that's when bucking and crap occurs.



Amel

 

Anybody else has any input on this problem? It would be wortheless for me to change twins, if i get the same problem.



Why is this bucking and hesitation and what not keeping the profec from raising boost?



Someone please help.



Amel

 

Thanks.

 

heh alot of people are having problems with those profecsm its got to be some type of leak some where.. A simple little pin hole can mess up alot of things under the hood with these twins..

 

Thanks, but it's not that. I'm 100 % sure i don't have any leaks. I triple checked it.



Amel

 

after doing this did you try to disconnect the battery?

 

well yeah, i had to disconnect the battery while replacing it, because i had to take out the alternator in order to get to it.



Amel