Cyl 4 misfire, Boost control below threshold, limp mode while logging... Just replaced coil pack...
#1
Cyl 4 misfire, Boost control below threshold, limp mode while logging... Just replaced coil pack...
Hey all - been a while since I've been over in this forum, spending all my time in the Rocky Mtn Regional board.
I've had a CEL for a week or so for a Cyl 4 misfire. I figured the easy answer was coil pack, the harder answer was injector... I dropped in a coil pack tonight, fired her up and she ran smoothly, but after a few pulls I started getting intermittent misfires again... Injector?
I was also going to run some logs for Tony @ EPL to see about some overboost I've been noticing and while running a log of 114 and 115 in 3rd from 2k - redline I go into limp mode on the first pull with a code of boost control below threshold (not sure the wording, and I don't have my VAG computer here).
So I figure that means N75 kaput?
Is there any alternate explanation for the Misfire besides injector if the coil pack didn't do it?
Thanks!
- Aaron
I've had a CEL for a week or so for a Cyl 4 misfire. I figured the easy answer was coil pack, the harder answer was injector... I dropped in a coil pack tonight, fired her up and she ran smoothly, but after a few pulls I started getting intermittent misfires again... Injector?
I was also going to run some logs for Tony @ EPL to see about some overboost I've been noticing and while running a log of 114 and 115 in 3rd from 2k - redline I go into limp mode on the first pull with a code of boost control below threshold (not sure the wording, and I don't have my VAG computer here).
So I figure that means N75 kaput?
Is there any alternate explanation for the Misfire besides injector if the coil pack didn't do it?
Thanks!
- Aaron
#5
Replaced all 6 plugs and switched the amps. Didn't fix it... I guess it's time for an injector.
I replaced all plugs with NGK bkr7e gapped to .030 and swapped the amps and cylinder 4 is still mis-firing at 1-2 misfires a second. N75 is on order, maybe I'll throw an injector in and hopefully that and the N75 will fix my issue.
Any other potential causes you can think of?
Any other potential causes you can think of?
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