Late boosting problem
#1
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Join Date: Jan 2015
Location: Birmingham
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Late boosting problem
Hi guys.. i have a v4 sti and after driving on motorway for a while i noticed it wasnt boosting properly, like it boosts around 5.5/6k rpm (still holds 1.2 bar) , i checked the pipes and turbo seems fine as powet is still there top end. Error code however did come up with idle control valve and maf. Would the Maf most likely be causing this? Cheers and let me know if anyone else experienced this..
ps im new here
ps im new here
#2
Im a friend of his, there is also another problem the car is not starting at all now the fuel pump does not prime on ignition would the maf sensor being causing the car to not start?
#3
Scooby Regular
iTrader: (7)
Hi there
Can you please check again for error codes ?
Failed MAF shouldn't cause to fuel pump not priming,yes starting problems or bad idle etc can cause
I would check wiring and MAF etc and please check fuel pump if its OK,fuel pump can fail and what fuel pump he is running?
Thanks,Jura
Can you please check again for error codes ?
Failed MAF shouldn't cause to fuel pump not priming,yes starting problems or bad idle etc can cause
I would check wiring and MAF etc and please check fuel pump if its OK,fuel pump can fail and what fuel pump he is running?
Thanks,Jura
#4
I do engine code check again, the maf wiring is okay even if we disconnect it car still doesnt start
How would you direct the fuel pump from under the rear seat? Or in boot and what wires are live and earth? Its a standard fuel pump
How would you direct the fuel pump from under the rear seat? Or in boot and what wires are live and earth? Its a standard fuel pump
Hi there
Can you please check again for error codes ?
Failed MAF shouldn't cause to fuel pump not priming,yes starting problems or bad idle etc can cause
I would check wiring and MAF etc and please check fuel pump if its OK,fuel pump can fail and what fuel pump he is running?
Thanks,Jura
Can you please check again for error codes ?
Failed MAF shouldn't cause to fuel pump not priming,yes starting problems or bad idle etc can cause
I would check wiring and MAF etc and please check fuel pump if its OK,fuel pump can fail and what fuel pump he is running?
Thanks,Jura
#5
Scooby Regular
iTrader: (7)
Do yours car have immobilizer?
Sometimes can immobilizer cause doesn't start or fuel pump relay etc,I would check few bits with multimeter
Thanks,Jura
#6
18 June 1815 - Waterloo
iTrader: (31)
You could always disconnect the fuel line in the engine bay into the fuel filter and turn the ignition on to see if there is flowinto the filter. Be careful not to squirt fuel everywhere and use a china mug or glass. If there is flow then check the out pipe from the fuel filter, no flow blocked fuel filter. If flow is present another easy check is done.
But check all the connectors and plugs under the bonnet then move on to the relays and fuses. The easy stuff may prove to be the problem.
Just my tuppence worth.
Last edited by The Trooper 1815; 12 January 2015 at 03:53 PM.
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