is fuel pump on way out?
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my mates mfi s1 rs turbo wont start unless you press the paddle on the air flow meter about a 1-2mm down. When its started it will back fire and not idle untill engine is warm. we have disconected the cold start valve and no luck. alll plugs leads ect have been changed for motorcraft items. the fuel pump relay keeps cutting in and out constantly or if i tap it ignition key it will stop. Could all this be the fuel pump or relay.
it seems to be getting plenty of fuel.
it seems to be getting plenty of fuel.
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it sounds like the fuel pump/distributer(the silver thing with the red fuel pipes coming out of it by the air filter) may have some crap in it,try stripping it down and giving it a good clean.
sorry if i'm telling you to suck eggs fella
sorry if i'm telling you to suck eggs fella
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Originally Posted by SafeChav
Its an air leak!!!!
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because pushing the flap down is giving it extra fuelling, if it has an air leak the flap won't move enough and therefore not enough fuel.
It could also be that the mixture is set very lean.........
And by the way air leaks can develop in about a million places on a MFI car, not just boost hoses.
It could also be that the mixture is set very lean.........
And by the way air leaks can develop in about a million places on a MFI car, not just boost hoses.
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if it was not enough air then it would be an air leak as i say above.
But either way, too little fuel pressure or not enough air, that wouldnt result in wet plugs?!
But either way, too little fuel pressure or not enough air, that wouldnt result in wet plugs?!
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if you've been trying to start it forever and a day then the plugs could well be wet.
But if you have to push the flap that shows there is an air leak and/or not enough fuel entering the cylinders.
But if you have to push the flap that shows there is an air leak and/or not enough fuel entering the cylinders.
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