JDM4x4 Posted February 22, 2007 Share Posted February 22, 2007 So the other day I was driving down the road and my car shut off. Then I tried to restart it and wouldn't. I let it sit for a few then it started up. Ever since then the car barely starts (barely turns over but starts ok) and then idle's like @!*%. anyone know whats goin on?? I thought it would be the alternator or something electrical but would that affect the idle?? :help: Link to comment Share on other sites More sharing options...
Casey.T Posted February 23, 2007 Share Posted February 23, 2007 Have you checked for any Codes on the ECU??? How to section has a pinned topic Link to comment Share on other sites More sharing options...
JDM4x4 Posted February 24, 2007 Author Share Posted February 24, 2007 Nice thanks. Link to comment Share on other sites More sharing options...
Casey.T Posted February 24, 2007 Share Posted February 24, 2007 ECU your welcome Link to comment Share on other sites More sharing options...
kwilley Posted February 26, 2007 Share Posted February 26, 2007 I have had the same (or at least a similar) problem. If there is a little positive pressure on the exhaust, you get a sort of vapor lock and the engine will stall out. You will not be able to restart until the pressures equalize again. This pressure differential usually occurs when you accelerate hard and then let off the gas quickly. The exhaust backs up into the engine and kills it. Check out your catalytic converter and/or muffler. There may be some kind of blockage or something. Link to comment Share on other sites More sharing options...
cr250r21 Posted March 26, 2007 Share Posted March 26, 2007 I've had the problem too. After checking the ecu, I got a code 21...ignition signal.. Does anyone know what this means? Link to comment Share on other sites More sharing options...
88pathoffroad Posted March 27, 2007 Share Posted March 27, 2007 That means that your power transistor for the coil is likely to be bad. They're a spendy little bastard to replace, though... mine was $110. You could always try to find a junkyard coil/transistor for cheap, it'd probably work fine. Link to comment Share on other sites More sharing options...
unccpathfinder Posted March 27, 2007 Share Posted March 27, 2007 if some1 can show me a pic i should have 1 off of my 87 that i would be willing to part with for cheap... Link to comment Share on other sites More sharing options...
octanevortex Posted April 20, 2007 Share Posted April 20, 2007 I have had the same (or at least a similar) problem. If there is a little positive pressure on the exhaust, you get a sort of vapor lock and the engine will stall out. You will not be able to restart until the pressures equalize again. This pressure differential usually occurs when you accelerate hard and then let off the gas quickly. The exhaust backs up into the engine and kills it. Check out your catalytic converter and/or muffler. There may be some kind of blockage or something. I thought the A/B valve (anti backfire) valve prevented equalization issues. Or is the egr valve not closing immediately? Link to comment Share on other sites More sharing options...
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