HELP....i think i have a bad FPRS

[cobra93teal]

ok here is what the car does... WOT it misses and studders.... but what is weird is that even if you give the car a little bit of throttel it makes boost! like 8+lbs this is not right... i dont know what could do this? the FPRS i can understand the missing and studdering but WTF about the boost? it is a stock 03..... and it makes boost like crazy...without even getting on it... PLEASE HELP the vaccumm line smells like gas.....but we took a FPRS off my buddies 04 and it did not fix it......i have not hit the revlimiter on this car(but when the prob started i WAS NOT driving it)

 

[yellow 04 cobra]

no rev limiter for me either!!

 

[cobra93teal]

no rev limiter for me either!!

no answer to my ? from anyone

 

[Dana]

How old are the spark plugs?
Maybe you should pull them and inspect them.

Might be time for a new set.

It's a place to start looking anyway.

Dana

 

[cobra93teal]

How old are the spark plugs?
Maybe you should pull them and inspect them.

Might be time for a new set.

It's a place to start looking anyway.

Dana

Thanks for the reply...the plugs are new.....i am sure it is nothing like that becuase the car makes boost all the time.... i am wondering if there is a boost by pass sensor on the side of the blower(or which sensor it is) the bad thing is the car has 368xxx miles on it! i am thinking i will call dealer monday as see if they will be helpful and take care of it

 

[Dana]

How about clogged/collapsed cats(s)?

Idle would be ok, but upper ranges would suffer + increased back pressure could account for higher than normal boost reading.
That is what you are saying - the boost is sooner and higher than normal, right?

Just a guess...

Dana

 

[Fordy]

Possible, but I wouldn't think a new car could have a clogged/damaged cat, unless you smashed the thing on a speed bump or something :/

 

[cobra93teal]

good thing to check.... i will look

 

[cobra93teal]

cats look fine....