Mechanics

CHEVY NEED HELP STARTING CAR

2003 Chevrolet Astro

2003 Chevy Astro 6 cyl Two Wheel Drive Manual

while starting engine takes a while, could smell gas fumes. Possibly told it was my maf sensor.
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Detje
October 9, 2010.



The coolant temp sensor could cause a problem so could the tps. Any applicable trouble codes? Some of the name brand autostores used to check codes for free. Use a gage and check fuel pressure, see if pressure bleeds off too fast? When the problem is ongoing, have a helper crank it while you visually check for spark at the plugs. Do you have the spider fuel system?

JDL
Oct 9, 2010.
We did put on the machine. The codes were: po100, po102, po103, and po104.
I have a book on what the codes mean and all of them were in there besides po104.
I do not know what a spider fuel system is,
i have a csfi(central sequential fuel injection) system: if that helps with anything.

Tiny
Detje
Oct 11, 2010.
I see, everything points to the maf sensor. At the maf connector, the pink wire is voltage, key on, no crank, use a digital multimeter, check voltage. Black wire is ground. Yellow wire is signal. You may need a scanner that shows live engine data, to look at the signal?

JDL
Oct 11, 2010.
We did that. Nothing has changed. It is still doing the same thing. What should I do now?

Tiny
Detje
Oct 13, 2010.
Don't know, I would have to look at it.

JDL
Oct 13, 2010.