Quote:
Originally Posted by mhuffman
Actually, it is fuel cut, ive been researching for hours and im sure its fuel cut, but i dont know why. Im gonna remove the lower honeycomb and pressure test the intake. Hopefully that'll solve everything.
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mhuffman,
lol, guess you didn't get to try the whole injector testing instructions that everyone was talking about.
Accels ARE known for EMI and Arcing which causes stutter at 4krpm, I've had it, and sent the new set of accels back to the manufacturer. Any spark plug wire is fragile and one it is kinked or damaged in any way, it will emit RF/EMI. They sent me a new set and it's worked pretty good for me for the past 20 miles I've driven the car.
Fuel cut at Partial throttle at 4k rpms?? In my oppinion its not, unless you have a MAJOR BOOST LEAK and its OVER SPOOLING your turbo and causing your MAS to Read excessive amounts of air.
I had stutter problems several different occasions on my car. Here are my experiences; Check your plug gap(.028 for 15 psi or more) I Know you stated you installed new ones, but just posting up info for future references. Enlarged gaps can lead to a lot of things including arcing and RF noise/Electro magnetic interference, because electricity will take the path of least resistance and generally can be between the wires IF the gap got enlarged.
Check your hose to your Fuel pressure regulator, I once T'd it off and installed my boost controller on that hose and I had problems because my boost controller was a bleeder type and blead air, which did not give me an accurate reading, so it stuttered at Partial throttle around 4k rpms,
Try your stock set of plug wires (if they are still good) or borrow a friend's wires to diagnose your wires.
How much boost are you boosting? also, please do a boost leak test and let us know what your outcome is on that.
Hey, I just went back to your original post and saw you already ran a leak test. EVEN though you just put those new wires in, doesn't mean they are not defective. I had the same problems with my brand new in box accels, and used my stock wires while I sent those accels for warranty and it worked perfectly fine but they were at its last leg, and started giving me stutter problems as well after a few hundred miles. I just received my new accels from the factory, and those have worked fine since the last few miles I've used them.
Hope this helps!
Take care!
'
Mark Padilla
lol
