Busted ass search....

[Doward]

Can you believe there are no matches for the word 'won't start' according to the search?

Anywho... I'm starting to get ticked with my car. A little background -

I got the car, starts when warm, but have to try 3-4 times, for 3-4 seconds each, to get her to start when it is cold.

Fast forward past a BHG and generally getting the 7M toward 'new' again, including testing out the CSI, cleaning the CSI, and all is good - car will now start IMMEDIATELY when the car is warm, but still takes 2-3 tries to get her to start right up after sitting overnight.

Now, I've got a MAFT-Pro - the first time I ran it, it fired RIGHT up (video on youtube of it) and I was happy as hell - now I'm thinking the car didn't cool down in the 3 hours or so I took to install it, as I thought. With the MAFT-Pro in SD mode, sitting overnight, this is what I get -

*turn key* Crank crank (1-2 seconds)
*1 second pause*
*turn key* - IMMEDIATELY fires up. Perfectly.

I'm now thinking that perhaps I've got a slightly leaking injector, causing my fuel pressure to bleed out overnight. First second or two of cranking gets the pump going, it repressurizes, and boom - cranked. Time for a fuel pressure gauge :3d_frown:

I'm guessing the best bet will be to bolt a fuel pressure gauge where the CSI injector goes into the fuel rail.

 

[TurboStreetCar]

you could jump the Fp and B+ terminals in the diag box to turn on the fuel pump. then get in the car after the pump runs for a second or two and try to start it. then you could see if thats the problem. easier then installing a gauge.

 

[Doward]

Mmm... didn't think of that - I'll give it a whirl tomorrow morning!

 

[TurboStreetCar]

:bigthumb: glad i could help!

 

[Facime]

Could be the CSI time switch. Did you check to see that you have signal to the CSI when its cold?

I also lean towards fuel pressure loss, but I would say that the fuel pump going bad is a more likely cause for the pressure drop.

 

[tookwik4u89]

:withstupi

CSI time switch