FrostyZX Posted January 10, 2015 Share Posted January 10, 2015 So my 1983 280ZX 2+2 is having cold start issues. when i turn it on it idles up real high like 900-1000rpm and if i touch nothing after a few seconds the rpms drop and it stalls out. If i crank it and pump the gas it will stay on and not stall out but if i just floor the pedal instead of pumping it it will stall out also the is a quiet backfire that sounds like it comes from the engine area. The reason im calling this a cold star issue is because if i pump the gas long enough for the motor to warm up to running temp i can let go of the gas and it will idle fine at 800-900rpms it revs smooths and sounds good. Quote Link to comment Share on other sites More sharing options...
NewZed Posted January 10, 2015 Share Posted January 10, 2015 Measure the fuel pressure when it's having the problem. Quote Link to comment Share on other sites More sharing options...
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