95's-10 help!!!!!!!!!

[riddick79]

i'm kinda new to this site, but i was reading alot of messages you wrote on and i was just wondering if u might be able to help me out. i have a 95' blazer (4.3L W) and it just won't start. if taken the upper intake of and cleaned it pretty good cause there was washing on the passinger side. i'm lost here cause i have replaced (CPI,fuel pump and sending unit, fuel filter, ignition control module, spark plugs, wires, rotor and dis cap about 7-10 months ago. i have no idea what else i can do. i also put it on a scan tool and got a P1351 code. it says it has something to do with the ignition control system or misfire. but i am getting good spark out of the #1 plug. Please help of you can.

[Fractured1]

have you tested spark on all the plugs...check cap and rotor for any signs of breakdown..On the other end is fuel reaching the engine...

[riddick79]

fuel is getting to the engine, but not sure if it's getting to the injecters.

[Mikado14]

Bad news is that if you have washing on the passenger side, that new CPI unit you installed 7 -10 months ago has a bad regulator.

[riddick79]

i thought that much, i have a new one coming to me. but i just hope thats it.

[BlazerLT]

Should be it.

Make sure you also change the fuel filter.

So you are saying that the passenger side is washed again? I thought by what you said that it was washed causing you to change the injector 7 months ago.

[riddick79]

i did change it 7-10 months ago, but it's washed again. i just hope thats the problem. i also read something about finding the pink 12v wire that runs to the igintion switch and moving it while trying to start the car? what's that all about? and i just changed the fuel filter last thursday. cause the blazer started to putt and go, so i did that, put a new battery in and tryed to fire it up, it took some fighting for awhile but she started so i let her run for a bit, turned her off and she has not started since.

[BlazerLT]

That will be the problem if it is doing it again and the part will be under warranty so you can get your money back for it.

Don't start playing around with other things. Fix the known and move along from there.

[riddick79]

i'm trying not to, all that other stuff i've done was before removing the upper intake and seeing it washed again. but if thats not it what do u think it coule be? do u know anything about the trouble code P1351?

[riddick79]

i'm so LOST!!!!!! just put a new CPI unit into my blazer and it still won't start... i can start it with starting fluid and it will keep running but when i turn it off it won't start again. i need help!!! thanks

[BlazerLT]

What about the nut kit? Were they broken?

Was the driver's side washed?

[riddick79]

nut kit is fine, driver side dirty, just put a new CPI in today.

[BlazerLT]

Lemme get this straight, you can start it up with starting fluid but then it will run until you turn it off and then it won't start again?

[riddick79]

yup, now u know why i'm lost on this one. still getting trouble code P1351, i checked the dis cap & rotor and they are good. can't figure this one out????

[BlazerLT]

I would check for a weak battery.

If the battery is weak, the pump will not get enough voltage to pump the 56-60psi needed for the injector.

BTW, stop starting it with starting fluid. Very bad for it.

Get the battery load tested. How many volts it is putting out etc....