Shop doesnt know whats wrong :(

suprafanatic

suprafanatic

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May 25, 2007
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so for those of you that know about the problems my car has been having i finaly just took it to the shop... a toyota dealership.. just got a call from them today and they said they dont have a clue whats wrong with it.. they said they think the aftermarket parts has somthing to do with it though :( what do you guys think?
 
suprafanatic

suprafanatic

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well when driving the car its fine at lower rpms.. but once you give it more gas and the boost starts to build up the car gets like sputter, jerky, jumpy kinda deal.. or almost like its missing or geting small fuel cuts one right after another and wont hardly accel..
 
suprafanatic

suprafanatic

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ok another call from the shop.. they said they cant work on it cause they dont know what the aftermarket parts are doing to it... even though there really arent any other that a new BOV.. 255 fuel pump and boost gauge..lol...but they think it has to do with the afm or sothing with air flow??? any ideas?
 
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teamslow

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suprafanatic said:
well when driving the car its fine at lower rpms.. but once you give it more gas and the boost starts to build up the car gets like sputter, jerky, jumpy kinda deal.. or almost like its missing or geting small fuel cuts one right after another and wont hardly accel..
Click to expand...

sounds like fuel cut. how much boost are you running? did you try lowering the boost?
 
suprafanatic

suprafanatic

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fuel cut at like 3-4 psi though?? i have it set to like 7-8 right now.. but i cant reach that much.. i get 3-4psi and its drives like crap. what would i do to fix the fuel cut?
 
suprafanatic

suprafanatic

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ok .. i just had a thought.... i did just put a new intake on it and then the probelm started.. would that cause the afm to do anything different?? before it was a filter right on the afm.. now i have an adaptor to pipe to intake filter
 
jetjock

jetjock

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Well, they have a legitimate point. Dealer techs aren't trained to work on modded cars and unless you have the ability to do it yourself it's a crap shoot to mod one. Sounds like the fuel pump relay is bad. That's assuming you haven't wired the pump for 12 volts. Try jumpering B to FP. If the symptoms disappear that's your problem.
 
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teamslow

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suprafanatic said:
fuel cut at like 3-4 psi though?? i have it set to like 7-8 right now.. but i cant reach that much.. i get 3-4psi and its drives like crap. what would i do to fix the fuel cut?
Click to expand...

do you have a boost controller on the car..set it back to stock to see what happen? to fix fuel cut you have to replace the afm with a bigger one such as the lex afm..or eliminate it completely. with maf-t or standalone. once the air flow meter gets a higher reading then normal the car goes into fuel cut. the lex afm tricks the afm because it is bigger and reads less air then is actually there.
 
josh930

josh930

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Did you remember to plug in your afm? When mine was sputtering my afm went bad. (just trying to narrow it down)
 
suprafanatic

suprafanatic

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ya i pluged in the afm..lol... hey Jet jock... you said jump B to FP?? do i jump them together then drive the car? or what do you mean exactly??
 
josh930

josh930

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Did you clean the afm before you put it back in because this really sounds like a bad afm. Are you throwing any codes? Mine did the exact same thing as yours and it was a bad afm.
 
josh930

josh930

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Did it drive ok after you put it on? I had a 57trim turbo I bought and it was spraying oil all over the afm making them no good anymore. What was wrong with your previous afm?
 
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