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I turned on my ignition and the speedo pegs out and drops back to 0. I never tried to start it. Crazy!
I am replacing the coolant temp sensor and pigtail and need to know what the best way is to connect the loose end of the new pigtail?
I noticed while checking connections on hoses and other connections that when I moved the vacuum line on the map sensor the RPM's shot up.
I know some cars have more than one. I need the main one that registers with the computer.
Every time I start my car it sets there and runs very rough putting out black smoke. I've changed Map Sensor, fuel pump and gas cap. Thinking about cleaning throttle body. It idles high at times.
I took the cap off the fuel pressure check port to see if it was getting fuel. I got gas and air bubbles. The motor is running very rough and is hard to start at times. Fuel pressure regulator checks good. I took off the vacuum hose and let it run 15 minutes with no sign of fuel.
Why is it when I pull the cap off of the fuel rail bleeder I get bubbles in the fuel. I tightened the bleeder and let some fuel pressure off and it ran pretty good. But the next morning it was running rough again. Done the same thing and it smoothed out. It had a little hesitataion. When running rough it has black smoke.
I was told that I had FPR problems and to pull the vacuum line off of it to see if there was any fuel coming from it. I could see no fuel. What next?
Sometimes my car will start and other times I have to push the throttle down about halfway. It runs rough and other times it doesn't. It has smoke coming from exhaust at idle. I pulled vacuum line off of FPR and no fuel showing. Could it be the map sensor?
I ordered a new electric fuel pump for my Pontiac GP LE 3.1. They have some dust covers for shipping. One on the top where the fuel goes into pipe to motor. One on the intake port at bottom. Beside the intake port is a round black rubber plug. I know I remove the other two but what about the black rubber one?