My 01 DMAX has developed a 3/4 cam type lope at idle, Is this a fuel pressue issue and is there a TSB, truck has 47k and I just changed filter About 2 weeks ago, but the lope started today, checked if filter was tight and all appears fine.
Went to dealer today, checked it out w/ Tech2. Ordered a new FUEL pump and regulator. High side was in range but low side was't even close and would not hold command pressure. Glad it's under the 100k warranty!
Got the truck back from the dealer today- Much smoother and no LOPE!
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