I have a 91 GMC sonoma 2.8L seems to be getting too much fuel. Once it warms up the idle runns up and will not drop to normal. Once I turn off the engine and try to restart it will not start unless I disconnect the injector connectors and start it. It the starts and stumbles and stalls. Once I reconnect the injector, it will start
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Tps sensor, temp sensor,fuel regulator,iac valve stuck too much dirt