| cm2250 rough idle |
| 02-21-2020, (Subject: cm2250 rough idle ) Post: #8 | |||
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| RE: cm2250 rough idle So, after posting this the issue did not present itself again until this morning. This time it was NOT in SCR warmup mode. 720rpm idle, outside temp was 15F when i started the truck. around the time it got up to 150K on the coolant (give or take a little) it started to bog down to 710 for a brief moment then up to 730 and back to 720. It took about 1 second to do that then the cycle would repeat every 3 seconds. It had a nice rhythm going. Did this for about a minute or 2 then returned to idling normally. Experiencing a few one-off occurrences still, temp is currently up to 180F. As I mentioned in this post last night I got one occurence of fault code 2321 Crankshaft Speed/Position - Data erratic, intermittent or incorrect. It was inactive when I had Insite up. Never had that or any other Crankshaft codes before. I'm wondering if this could be the cause of the rough idle? User's Signature: "...And as we wind on down the road, Our Shadows taller than our Soul..." | |||
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