On the fuel pump relay socket which pins need to be jumped to start the car?
Change the fuel pump relay it could be any one of the pins
SOURCE: 2002 bmw 325i running rough
Did you replace your fuel filter when you did the pump? At lower RPM's the engine would be starving for fuel. Another cause could be your throttle position sensor. It is what shifts your transmission at predetermined shift points as you throttle up and down. It is also what kicks down your engine when you are stopping or slowing down as you go down through the gears. Hope that helps!
SOURCE: check engine light comes on but car runs great 2002 bmw 325i and
The check engine light could be any number of things and the only way to find out is have the codes scanned. The brake light issue is common on E46 3 series. It is an issue were the brown ground wire that goes into the lamp housing melts at the connector causing a loose ground connection. The connector needs to be replaced and also add additional grounding wires to prevent further issues. And for fuel additives either use the cheveron techron, or the bmw fuel additive(the bmw stuff is the exact same thing, so just use which ever is cheaper).
SOURCE: My 2002 BMW 325I will not start in cold weather.
hi Fred, kind of sounds like you have a sticking, or contaminted idle valve. when it is 40-45F outside, a sticking or contaminated valve will cause the fuel mixture to be to rich. as the temp warms, the mixture requirement is not as rich. a quick check is to hold the gas pedal to the floor for 5-10 seconds when cranking cold and then let up. if it seems like it wants to start, the valve is faulty.
SOURCE: how to remove fuel pump on 1989 325i bmw
remove rear seat and look for plastic big round cap
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