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Starting Issue Car Dies When Throttle Applied

B-rice

By B-rice,
in General Maintenance

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B-rice Mentor

B-rice

Posted
Posted

Hi

Ive recently had a starting issue. tried changing the plugs and testing for spark. Tested the CAS by spinning it. Checked for fuel after the rail. got the car started by spraying start aid to the intake. It started straight away. but when throttle is applied it seem to die or drop revs till it dies.

ive recently started using united e85 so im thinking maybe dirty injectors. But when the car started it ran for 10mins without a problem. but dies when revs applied. The first time this issue occured the car died in the middle of the road, lost all power but the revs were still present. As soon i applied more throttle it died. Thereafter never managed to start it till now.

any help is appreciated as im trying to to waste money on something that isnt broke.

R3GTT, VIPEC PLUGIN

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89CAL Grand Master

89CAL

Posted
Posted

Does the FP Speed light up green when you blip the throttle?

Can you post up the fuel and IGN tables as well?

have you done the TPS and MAP calibrations (looks like you have)

Are the injectors set right?

Is the intake air temp sensor right when it says 11 degrees? Seems awful cold for this time of the year but might just be that cold there lol

Mick Mentor

Mick

Posted
Posted (edited)

mine seems to be a lil like that at the monent, i will run a bottle of injector cleaner through mine, you should do the same cos its cheap and even if it doesnt help at least your injectors will be clean lol

Edited by Mick
scotty nm35 Grand Master

scotty nm35

Posted
Posted

Get the injectors flow tested, I have seen so many sets lately blocked with black gunk... You will be chasing your tail until you know they are all flowing fine.

Do you have a fuel pressure gauge also?

B-rice Mentor

B-rice

Posted
  • Author
Posted

I always run a bottle of injector cleaner every month when I change oil. I probably use a bottle to half a tank which is more concentrated.
I have a fuel pressure gauge too bumped up the pressure to 50psi. Didn't really help.
I really hope it's the injectors because they take a fair bit of effort to remove.

But yes ill get them flow tested and cleaned and possibly source o new filter baskets for them. Were they ASNU1100CC by anychance?

ive attached the fuel and ignition tables

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89CAL Grand Master

89CAL

Posted
Posted

10 degrees and 4 degrees? Is it really that cold there? lol

Also, and this might just be me, but I think a bottle of injector cleaner a month is a bit excessive. I never used it with my NISMO 555's and never had any issues for 2 or 3 years

scotty nm35 Grand Master

scotty nm35

Posted
Posted

Good to hear.

I have asked my injector specialist for some heated e85 specific injectors for this very reason, should fix all our cold start issues... If they can get us some, or get them designed and built.

I can see the fuel gauge dropping on cold start as I drive up the street. If these injectors fall through I may have to swap back to pootrol this winter.

B-rice Mentor

B-rice

Posted
  • Author
Posted

yeah i thought im going crazy but the gauge moves a lot quicker just after starting it. Not sure how other peoples setups are working on E85 but here in Canberra on the very first start you need to try atleast twice for it to start. Thereafter it starts on first go , if that makes sense. I have ASNU1100CC

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