Quote:
Originally Posted by frankenm
My idea is that with the JB4 I just reset the warning when it happens so I don't need to cycle the truck off and on ...
Outside of a possible turbo issue I'm not sure what causes mine.
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I don't believe it works like that. The JB4 reads and clears CEL codes, but seeing as the Reduced Power warning isn't kicking a CEL, I'm sure you're still going to have to cycle the engine. I've gotten to the point where I do it while driving if the conditions permit without being a safety issue.
Of the codes I get, I've gotten 30FF more than once. While searching here next see results, do that same search on some mass produced cars like the the 3 or 5 series powered N54's and you'll see theads, YouTube videos, etc in regards to wastegate issues. Long story short but I've gotten myself another set of downpipes, so I'm going to vacuum pump the wastegates and adjust the preload on the wastegate arms while I've hit the downpipes out. It's a very common practice on the N54 but I've never read about it being done here.
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'10 BMW X5///M - Alpine White on Sakhir Orange - JB4 w/ HCP Stage 2 BEF, NGK 97506 @ .20, SS tubing & BMC filters, gutted cats, AC Forged 312 22's, H&R 2"
'98 BMW 740iL - ///E39 M5 6spd swap, fully built engine (sleeved, P&P, cams), 3.46 LSD, H&R Stage 2/Bilstein HD, Magnaflow 14816's
'97 BMW 328ci - ///E36 M3 clutch & L/W flywheel, Z4///M 18's