HELP !! Fuel/boost cut
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Brenton31zJunior Member
- 13
Correct They are the only mods. I just replaced the fpr the PO had in there with a turbosmart 800 -
Brenton31zJunior Member
- 13
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WilsonthesphereSenior Member
- 208
Other than the fuel cut the car idles and run fine in vacuum? Have you checked the POV? I would just put a cap from the NA or pipe fitting if possible.Own:
1986 Z31 2+0 Turbo GLL ---- spearco IC ,3" exhaust, Poly everything with solid subframe and diff mounts, HX35/40 Holset Turbo, CLSD, Nistune with 1220cc FIC injectors on E85.
1993 Jeep Cherokee 4X4
Owned:
1995 Z32 2+0 NA Black
1985 Z31 2+0 turbo Black
1986 Z31 2+0 NA Red
1988 Z31 2+2 NA Auto
1988 Z31 2+0 Turbo White ---- Stripped for all of its goodies.
1984 Z31 2+0 turbo Brown
1985 Z31 2+0 NA Black
2003 Nissan frontier D22 supercharded vg33e 4x4 -
Brenton31zJunior Member
- 13
Car runs fine at idle, I removed the POV and capped Iâm still getting this cut. I donât no what else it could be -
JSMSenior Member
- 279
Iâm more curious about your symptoms. When you say cuts out and no longer makes boost, does it seem like it just stalls or shuts down or does it continue up into the rpm range and just not make power? I was thinking maybe your waste gate was stuck open. Can you rev the engine under no load through the rpm range? Just blipping the throttle?
Ive seen many rusty wastegate arms and was wondering if it may be hanging up some. -
Brenton31zJunior Member
- 13
it just stalls and shuts down but the car does not turn off, once it comes back off pressure/load it will run again. I can rev the engine under no load through the rpm range and it is fine. -
WilsonthesphereSenior Member
- 208
Are you sure your ignition system is in good shape. Good coil and good spark plugs and wires?Own:
1986 Z31 2+0 Turbo GLL ---- spearco IC ,3" exhaust, Poly everything with solid subframe and diff mounts, HX35/40 Holset Turbo, CLSD, Nistune with 1220cc FIC injectors on E85.
1993 Jeep Cherokee 4X4
Owned:
1995 Z32 2+0 NA Black
1985 Z31 2+0 turbo Black
1986 Z31 2+0 NA Red
1988 Z31 2+2 NA Auto
1988 Z31 2+0 Turbo White ---- Stripped for all of its goodies.
1984 Z31 2+0 turbo Brown
1985 Z31 2+0 NA Black
2003 Nissan frontier D22 supercharded vg33e 4x4 -
mwolvinmSenior Member
- 249
Iâm thinking it is fuel related based on the pressure readings from the gage. Could there be a restriction in the fuel line somewhere that restricts flow? Iâm thinking a crushed fuel line, clogged filter, or gummed up sock in the tank.
My my thought is that you arent getting the flow you wed to the injectors to support the fuel needed on boost.--------------
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Any information shared is simply my own opinion and NOT the opinion of Nissan
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