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MIGHTYJO3YOUNG

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Discussion starter · #1 ·
I had my motor cranking and firing great yesterday. Last night it stopped firing because I think the plugs got fuel soaked. I have 42# and maf cal'd to them. Fuel PSI is at 24 to make up for the large injectors at the moment.

Today I go to fire it up thinking the fuel should have evaped so it should fire. First crank, very loud bang like a backfire. Smoke from the header area in the engine bay???

After that the motor wont start for a good bit. Got it to start for about 2 seconds. Motor quickly rises to 3000 rpms on its own, then dies immediately after. Gas pedal has no effect on keeping it running. Acts like Im not even touching the pedal. Started it up a few times like this. noticed certain headers weren't getting hot. Cyl 1, 6, and 7 are cold while the others are hot. Clueless as to what happened and caused it to not want to run at all now when yesterday it was fine. Haven't touched anything since then.

Pulled plugs and there is a bit of fuel on them so they are at least getting fuel. Cyl 1 DEFF has spark. Shocked me holding plug while some one cranked.

Any Ideas at all? Timing jumped?
 
#2 ·
Are you getting spark, through every spark plug ?
 
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Discussion starter · #3 ·
Cyl 6 and 7 plug wires were backwards on the spark plugs. Explains why they were cold. Cyl 1 seems to be getting no spark. As it is still cold. I don't really see that being the issue of why it cuts off so fast though especially when it ran fine yesterday without 3 cylinders.

Changed the spark plug and it still doesn't fire that cylinder.

time passes....

Ok, looked around at all the vacuum ports and crap and somehow a big red plug for the egr port on my blower was missing causing the worlds BIGGEST vacuum leak lol. I Really hope the motor didn't eat it :eek:. It also explains why my motor got enough air with the throttle closed to rev to 3k rpms.

All cylinders going good now except for cyl 1 :( No spark.
 
#4 ·
Well if you have spark through the wire, then id say to replace that one spark plug.

If you have spark through the the plug and wire, then check to see if that injector is firing.
 
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#5 ·
see if the plug is being grounded by the blower maybe?

pull dizzy cap (zomg have to pull blower wtf) and look in the cap/rotor for damage. if the blower is riding on the cap of the dizzy, it could have knocked something out of whack.

also test the sparkplug wire, ether with a multimeater testing the ohm, or just swap the plug to another cylinder.


first **** that comes to mind with what you've said
 
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#6 ·
302Army187 said:
see if the plug is being grounded by the blower maybe?

pull dizzy cap (zomg have to pull blower wtf) and look in the cap/rotor for damage. if the blower is riding on the cap of the dizzy, it could have knocked something out of whack.

also test the sparkplug wire, ether with a multimeater testing the ohm, or just swap the plug to another cylinder.


first **** that comes to mind with what you've said
Click to expand...
screwdriver in wire boot near an open ground. have someone crank nd look for an arc.. lol backyard mechanics
 
Discussion starter · #12 ·
Thanks guys, I will give some of this a go tomorrow - the pringles can lmao. Hmm, can the plug wire be grounded even though it is insulated in the rubber? When i put the blower on this time it seemed tighter around the dizzy, and smashed plug wire 1 under this notch on the bottom of the blower. Its extremely tight there? Maybe grounding it? It was firing before I took the blower off the last time. Screwdriver is a better idea than what i did. I held the plug in the boot while some one cranked. Gave me a nice shock lol. How I knew I had spark before. Haven't tried that way since cause I didn't like the feeling so much.
 
#13 ·
what plugs are you running? almost seems like the plugs are too cold. I had that problem once with my old 5.0 when I was running some accel cold plugs for summer, once the weather got colder out, it did exactly what your talking about
 
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#14 ·
F8L GT said:
what plugs are you running? almost seems like the plugs are too cold. I had that problem once with my old 5.0 when I was running some accel cold plugs for summer, once the weather got colder out, it did exactly what your talking about
Click to expand...
+1

I've seen CHEAP plugs ground easy.... so its possible mang.
 
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Discussion starter · #16 ·
Problem solved. The plug wire was hitting a protrusion on the blower case. It was split open and grounding on the blower. Reversed plugs 1 and 5 and everything is running grand now. Even without the blower working it revs faster than it did before I started this whole swap. So I'm happy! Also no more leaks!
 
#17 ·
New video please.

Did you get the tenshioner all worked out, and what was the noise coming from ?
 
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#18 ·
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Discussion starter · #20 ·
Lol the blower is playing tricks on me for sure.

I can put a new vid up, but the blower isn't hooked up. I have a separate belt to run it without the blower. Just waiting on the full length 1 piece snout shaft. No more press on garbage. The press ons seemed to keep breaking and mine had a very bad wobble so it would have broke asap. Should be here monday. Last video with the blower was only with 6 cylinders :O

The noise ryan is the boost bypass valve. It makes a weird whistle while idling but now goes away when I get the throttle to about 1000 rpms or more. But be sealing weird? But it seems to function 100% with no problems other than an annoying whistle..
 
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MIGHTYJO3YOUNG
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