Engine idles fine. When driven engine goes "OK" for 5 or 10 min, then looses compression, hesitates, may stall - doesn't go above 30 mph - slugglish. Engine restarts. Idles fine. Then pattern repeats. I've changed fuel pump, coil, control module. Help - please?
Do as ASC asked. Hook up a fuel pressure gauge also. Where you can see it by the wiper cowl area. Then as you're driving look at the fuel gauge when the problem happens does it drop?Try removing the air filter and see if that helps any. If so you'll need to replace it.