High RPM Hesitation/Fuel Cut and Glowing exhaust manifold!!!!!

[pmurr181]

Still trying to diagnose the problems guys. Is there two or one o2 sensor on gtst? i have found one on the exhaust down-pipe.

[craftz]

Yep, you found it. There is only one.

[love_boost]

check for airleaks before the maf?
a leaking intake manifold gasket can also produce the same symptons that you listed.

[pmurr181]

sweet thanks.
Okay will do. you mean like the pod filter itself. or would it be after the MAS?

[love_boost]

yeah pull the pipe that connects the MAF to the turbo, also has the PCV hoses. check them all for any pinholes or leaks.

[pmurr181]

so i am still trying to figure out the problem....
Does anyone know where i can get OEM or replacement fuel pressure regualtor for stock rb20

[89Baysideblue]

high rpm & fuel cut?
are you running a boost controller? if so maybe your overboosting?

glowing exhaust? that is just wrong, unless you have some cheap china knockoff for an exhaust manny?

good luck

[love_boost]

so i am still trying to figure out the problem....
Does anyone know where i can get OEM or replacement fuel pressure regualtor for stock rb20

easiest would just buy a aftermarket inline FPR with pressure gauge.
but give mike at 4Xtoys, he probably has something and would give you a decent price im sure, if not autoream orsomeone would have one.

honestly check for vaccum leaks, anything that would make a source of vaccum (not boost leak) will make your car run lean.

you may have to get a pressure tester and open throttle plate and set the regulator around 15psi and listen for leaks, or if you have a smoke tester works better.

[got_boost!]

Sorry but I really didn't want to read all 11 pages. Did you try a new O2 sensor?

[love_boost]

Sorry but I really didn't want to read all 11 pages. Did you try a new O2 sensor?

i think he did all the basics lol, i hope

[pmurr181]

yeah guys thanks for all the replys. I have done all the basics now i am looking further into it. its the stock exhuast manifold and i have no boost controller. Thank you fro all the help guys i will see what i can get for fpr and i will check for vaccum leaks

thanks