Thread: Car died then wait then start then drives then dies - Repeat, wth?

Came off a very quick (5-6 second WOT run) & car dies completely. I pulled over & car wouldn't start, 10 mins goes by & car fires up but idle is wild. I put in gear & proceed to drive another 5 mins when car dies again. I repeat that 3 more times before I get home. I also did notice at one time during the driving that the TCS light stayed on. Another time it didn't. Anyone experience this or where to start? I am hoping fuel pump or something?

No codes either

I'll start by checking your fuel pressure

Could be cps

That too

yup, what they both said.

Don't have a FP gauge but I was thinking of doing the FP resistor bypass for starters?. Wouldn't CPS throw a code?

CPS normally doesn't throw a code

crank sensor almost never sets a code.

you can get the free rental deal for a fuel pressure tester.

I have a vacuum pressure gauge, will it do FP as well? It has a hose with a plastic fitting. Will that work on GP's?
How do you test the CPS?

Originally Posted by Elite6

I have a vacuum pressure gauge, will it do FP as well? It has a hose with a plastic fitting. Will that work on GP's?
How do you test the CPS?

A vacuum gauge will not work to test fuel pressure. You need an actual fuel pressure gauge. To test the CPS you need a logic probe. You the pin the CPS input on the ICM and turn the engine over and see if the light it blinking. (You have to do this when the car won't start)

Remember Scotty he's in Canada so no autozone, advance etc I believe.

BOOOOOOOO, the parts stores must be almost as cool as ours here in the states ehh?

Healthcare > rent a tool lol

Love my rental tools I have a FP gauge :-P

Car seemed to start up & run fine for little stints + I bypassed the low speed pump & no dice still. I just replaces the CPS & now the car wont start at all. I kept it running for about 3 seconds just barely. Don't tell me I have to get this towed to the dealer/shop?

I decided to replace the CPS given it was an easy job, car won't start at all now. Wondering if a case learn is needed now?

Push the Schrader valve on the fuel rail. Does fuel come out?

Originally Posted by dsmuts

Push the Schrader valve on the fuel rail. Does fuel come out?

Yes.

Progress: I pulled the MAF & car started & ran. I shut car off started with MAF plugged in, it ran for 10-15 seconds & died. Dead or dirty MAF?

You need to replace your MAF or just run with it unplugged. (Gas mileage will suffer some without it)

You could try cleaning it with MAF cleaner but I doubt it will help if it's so bad that the car can't run with it plugged in.

Yep maf is dead