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Miss-firing / Rich / no idle = Toe home :( Need help ASAP!

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Old 10-29-2011, 12:58 PM
  #16  
Bri Bro
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Swap out the coil.
Old 10-29-2011, 01:05 PM
  #17  
Adonay
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Sounds like too me like it is a huge vacuum leak or electrical . Issues i have had with more or less the same:

Boost hose blown off IC pipe.
Map sensor disconnected
Injector connector has jumped off "well car was not running rich"
Faulty 3Bar FPR
Vacuum under the throttle body or the nipples on the intake were broken.
TPS
Poor idle due too ISV doing weird things.
Old 10-29-2011, 01:55 PM
  #18  
Paulyy
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Originally Posted by ausgeflippt951
When you say "'work' in the city tonight," for some reason an image of a call girl came to mind... Moonlighting, are we? Either that, or as a drug dealer.


This sounds like a wiring issue to me -- you've got to be shorting somewhere all of a sudden.

Collin
LMAO! Nah I DJ...

It doesn't seem like a wiring issue to me, because i could drive it at low rpm upto 2psi of boost but it would be a huge struggle. and it would get worse the longer it runs and would get to the point it wont idle.

Originally Posted by Oddjob
If you dont find the problem elsewhere:

I had a TPS fail in the full load position, so the DME ran the full load fuel maps. Killed the car, wouldnt restart due to too much fuel. Smoked black and could smell raw fuel in the exhaust.

Also recheck for vacuum leaks, holes in the backsides of the intake boots, etc. Have also had that keep a car from running.
I'll recheck, No intake boosts... all new.

Originally Posted by reno808
did you check ur spark plugs?
did you check your those connects on ur maf?
did you check ur ref sensors?
new sparkplugs so no, but i will check anyway.
maf connections are all good
and i have no idea how to check the ref sensors? explain how to please?


Originally Posted by Brian Broderick
Swap out the coil.
I want to try that, I've got a MSD one in the car now, but it's giving a pretty strong spark.

Originally Posted by Adonay
Sounds like too me like it is a huge vacuum leak or electrical . Issues i have had with more or less the same:

Boost hose blown off IC pipe.
Map sensor disconnected
Injector connector has jumped off "well car was not running rich"
Faulty 3Bar FPR
Vacuum under the throttle body or the nipples on the intake were broken.
TPS
Poor idle due too ISV doing weird things.
Boost pipes are connected properly.
map sensor is connected properly been checked.
injector plugs where connected and all firing, it ran rich while(not before) this happened.
3bar FPR is new, and has 3bar fuel pressure and rises with boost.
i don't think the ISV has anything to do with the missfiring while driving and idling. that's more of a cold start thing.

Thanks for the list though.
Old 10-29-2011, 01:58 PM
  #19  
dirtyTurbo
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I had a similar problem the other day and it turned out my DME relay was slowly dying. It's worth a shot!
Old 10-29-2011, 02:40 PM
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blown 944
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Can you log the maf voltage? It would be nice to know what the dme is seeing out of it. Maybe grab a can of maf cleaner and see if it helps.
Old 10-29-2011, 03:03 PM
  #21  
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Well I had a similar problem a week or two ago and posted about it. Large backfired and then no power. I checked the rotor the first time and it looked good no cracks. Then I checked it again a few days later and realized the small screw that holds it onto the engine was missing and I could freely twist the rotor back and forth and take it right off.... Not good. Lined up the hole and put a new screw in and it fired right up. It happened to someone else who posted on my thread as well....
Old 10-29-2011, 03:45 PM
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minho78
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When you checked the cap did you see if the rotor looked OK? Check for Arc burns.
Old 10-29-2011, 11:07 PM
  #23  
Black51
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Originally Posted by Clown
Well I had a similar problem a week or two ago and posted about it. Large backfired and then no power. I checked the rotor the first time and it looked good no cracks. Then I checked it again a few days later and realized the small screw that holds it onto the engine was missing and I could freely twist the rotor back and forth and take it right off.... Not good. Lined up the hole and put a new screw in and it fired right up. It happened to someone else who posted on my thread as well....
Originally Posted by minho78
When you checked the cap did you see if the rotor looked OK? Check for Arc burns.
+1
Old 10-29-2011, 11:43 PM
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Originally Posted by ihaza944t
I had a similar problem the other day and it turned out my DME relay was slowly dying. It's worth a shot!

I've got a spare, came with the car.. I'll give it ago.

Originally Posted by blown 944
Can you log the maf voltage? It would be nice to know what the dme is seeing out of it. Maybe grab a can of maf cleaner and see if it helps.
I'll Log that also,

Originally Posted by Clown
Well I had a similar problem a week or two ago and posted about it. Large backfired and then no power. I checked the rotor the first time and it looked good no cracks. Then I checked it again a few days later and realized the small screw that holds it onto the engine was missing and I could freely twist the rotor back and forth and take it right off.... Not good. Lined up the hole and put a new screw in and it fired right up. It happened to someone else who posted on my thread as well....
&

Originally Posted by minho78
When you checked the cap did you see if the rotor looked OK? Check for Arc burns.
My cap was cracked, and it was pretty new. No arc burns though, replaced with with a good used one i had at home and no difference.


I need to step out for a bit, when i get back I'll have a whole list of thing i'll check.
Old 10-30-2011, 04:40 AM
  #25  
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I haven't logged any voltage just yet ffrom the MAF but dad cleaned the TPS and i put everything back together, turned it on to a loud band and started and ran smoothly. ehhh
Old 10-30-2011, 04:48 AM
  #26  
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Looks like it was the TPS after-all... glad it was an easy fix
Old 10-30-2011, 05:29 AM
  #27  
JET951
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Welcome to the world of automotive modifications....and tow trucks
Old 10-30-2011, 06:02 AM
  #28  
Paulyy
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Originally Posted by Rogue_Ant
Looks like it was the TPS after-all... glad it was an easy fix
yeah, I'm glad it's fixed. i ran it on idle simulated a few situations and found out it was the tps. when the tps was unplugged it was the same as how it ran.

Originally Posted by JET951
Welcome to the world of automotive modifications....and tow trucks
Oh thanks! hahaha.
Old 10-30-2011, 08:36 AM
  #29  
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That would be 'Toe Truck' lol...glad it was a quick fix Paulyy.
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Old 10-30-2011, 08:40 AM
  #30  
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I'm going to get some T-Bolts to keep the boost pipes connected.


Quick Reply: Miss-firing / Rich / no idle = Toe home :( Need help ASAP!



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