I sorta' only half remember the original post....sorry.
When you say "stutter", what exactly do you mean? Like a misfire or
something? Does it just do it once and go away or does it fall on its face
like the fuel pump died? What year 2.5 tII and ECM? Sorry if these are all
topics you've previously covered in your posts.
Anyway, just a shot in the dark, but maybe check the shutter plate on the
distributor for the hall effect pickup....sometimes the plastic fatigues and
breaks and the shutter plate flops around and gives you variable injector
and spark timing ;)
Also, maybe you have only one bad injector (or incorrectly functioning
injector). Like someone previously suggested....check your plugs and make
sure one cylinder isn't running lean....even though a/f is showing rich.
And speaking of rich....maybe you're choking it with too much fuel....what
are you running for fuel pressure? Stock regulator? Rising rate? etc. etc.
etc.
Check your injector wiring/harness. I had a '90 lebaron 2.5 tI with really
bad corrosion on the terminals in the plug for the injector harness and it
would miss often....codes for bad injector #? or something like that.
Cleaning up the terminals helped for a while, then the problem came
back....think I had a bad wire somewhere in that harness too....had to get
rid of the car for other reasons and never found the exact problem.
Good luck man.
Mike
'87 CSX #481
'05 Neon
From: Dave Krulitsky <[EMAIL PROTECTED]>
To: Shelby-Dodge <[EMAIL PROTECTED]>
CC: Dave Krulitsky <[EMAIL PROTECTED]>
Subject: SD> Studdering etc.
Date: Fri, 11 May 2007 17:28:54 -0700
Well, I dialed the pressure back to 15 psi, and I still get stuttering at
higher rpm @ WOT. Pyrometer is at 1500 or so, lean/rich is at full rich,
Champion cold plugs, magnacor wires, new coil. Plugs gapped at .31 . 94
octane fuel. I get the same problem at high boost, or low boost pressures.
Any advice would be welcome.
Dave Krulitsky
1986 GLHT
2.5, t2, etc.
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