Thread: Won't start, has fuel and spark

Been plagued with a rich fuel trim prob so I chased down a leak to the supercharger gasket, still leaked after the first one so I pulled it apart and put another new one in. It ran before I re- replaced the gasket. I have fuel pressure, spark plugs are wet and I have spark but it won't run. Here's a short vid, I also have a scan from hptuners if interested.

http://www.youtube.com/watch?v=NeGzdRGDFmo

Did you double check everything was plugged back in? How did you determine you have spark?

Originally Posted by dsmuts

Did you double check everything was plugged back in? How did you determine you have spark?

I believe so. I have a spark tester that you plug one end on the plug and the other in the boot and it lights up as you crank. I did this all at the coil as this motors in a fiero and is a biotch to get at the front 3 cylinders.

Pull one of the plugs that are easy to get at and leave it in the plug wire and lay it against the block and see if you can see spark.

Originally Posted by dsmuts

Pull one of the plugs that are easy to get at and leave it in the plug wire and lay it against the block and see if you can see spark.

I should have mentioned that in my last response, oops. Yeah I did that but I grounded it on the strut tower bolts and yeah there was spark there. And my fuel pressures around 45ish on the guage.

Either the firing order is off or there is a massive vacuum leak somewhere.

Originally Posted by Fivefingerdeathpunch

Either the firing order is off or there is a massive vacuum leak somewhere.

I never touched the firing order myself. I figured it might be a vacuum leak so I pressurized the intake through the throttle body and there was a very slow leak down, less than before when it was running.

Spray some starting fluid or brake cleaner in a vaccum line or unplug the MAF sensor and try again.

Something is not working together, maybe a vats code or something.

Originally Posted by Fivefingerdeathpunch

Spray some starting fluid or brake cleaner in a vaccum line or unplug the MAF sensor and try again.

Something is not working together, maybe a vats code or something.

I could try the starting fluid to see if it'll run that way. I did previously disconnect the maf but no change.

I tried starting fluid through a vacuum port on the top of the motor(octopus) and no change in the way it's turning over.

I was playing around testing the icm and crank sensors as per

http://easyautodiagnostics....gnition_module_1.php

I followed it through and all is good until i got to part 6 where you test the signal from the 3x and it says if the led blinks, the ICM is bad. Well mine blinked, but i have spark.. Confused.

it can happen like that. the icm maybe throwing the sparks at the wrong time or weak spark.

if you got a junk yard near by pick up a used one and swap it.

Originally Posted by Scottydoggs

it can happen like that. the icm maybe throwing the sparks at the wrong time or weak spark.

if you got a junk yard near by pick up a used one and swap it.

the problem with our junk yards is that they want similar to new prices for old crap. Theres one about 6 hrs away and they want $150 for it, I told the guy I can buy a new one from napa for $190, he said thats the best he can do then hung up. Anyone know th epart number for these icm's, I found a couple different ones that look the same but different numbers.

try ebay. they are all the same, n/a s/c park ave, montie, regal.

look up your icm on a parts store site, you'll have one part # to go off.

Originally Posted by Scottydoggs

try ebay. they are all the same, n/a s/c park ave, montie, regal.

look up your icm on a parts store site, you'll have one part # to go off.

I tried that on one and i got a few different part numbers that they all said would fit and that didn't seem right. But some of the problem is they don't have an option for the supercharged motor.

all the same.


http://shop.advanceautoparts.com/p/a...lVehicle=false


http://shop.advanceautoparts.com/p/a...lVehicle=false


http://shop.advanceautoparts.com/p/a...ion+components

i searched a 98 regal gs, a 2000 gtp, and a 02 n/a all the same part #

Originally Posted by Scottydoggs

all the same.


http://shop.advanceautoparts.com/p/a...lVehicle=false


http://shop.advanceautoparts.com/p/a...lVehicle=false


http://shop.advanceautoparts.com/p/a...ion+components

i searched a 98 regal gs, a 2000 gtp, and a 02 n/a all the same part #

awesome thanks, i was trying the places i knew, not much in canada. Atleast they had the supercharged option, i didn't think the n/a was interchangable

http://www.grandprixforums.net/threa...04#post1191104 heres one listed for 15 bucks. not sure what the shipping to up north will add tho.

Originally Posted by Scottydoggs

http://www.grandprixforums.net/threa...04#post1191104 heres one listed for 15 bucks. not sure what the shipping to up north will add tho.

Awesome thanks for that.

I quickly replaced the icm and it's still not running. At least before it sounded like it wanted to run and now it just cranks over. I will have to test this one as well when I get the chance.