cm2250 rough idle
02-29-2020, (Subject: cm2250 rough idle ) 
Post: #31
RE: cm2250 rough idle
(02-29-2020 )JimT Wrote:  
(02-22-2020 )hhow55 Wrote:  Mine did the surging, like you describe. It turned out to be hydrocarbons flowing back into the intake, via the egr. Have you tried disconnecting the magic plug?. When I disconnected mine, it smoothed out beautifully.

I suspect you were correct. With the EGR disabled I have not experienced this problem again. I can't say for certain what was causing it, but without the EGR it hasn't happened. At least not yet.

While driving down the highway and engine at normal temp's, pull off to safe parking area, and take a temp reading at each exhaust port on manifold, and see if there is any variation.


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 Thanks given by: JimT


Messages In This Thread
cm2250 rough idle - JimT - 02-13-2020,
RE: cm2250 rough idle - Rawze - 02-13-2020,
RE: cm2250 rough idle - JimT - 02-13-2020,
RE: cm2250 rough idle - JimT - 02-21-2020,
RE: cm2250 rough idle - Rawze - 02-13-2020,
RE: cm2250 rough idle - JimT - 02-13-2020,
RE: cm2250 rough idle - Rawze - 02-13-2020,
RE: cm2250 rough idle - JimT - 02-13-2020,
RE: cm2250 rough idle - JimT - 02-21-2020,
RE: cm2250 rough idle - Rawze - 02-21-2020,
RE: cm2250 rough idle - JimT - 02-21-2020,
RE: cm2250 rough idle - JimT - 02-21-2020,
RE: cm2250 rough idle - JimT - 02-21-2020,
RE: cm2250 rough idle - Rawze - 02-21-2020,
RE: cm2250 rough idle - JimT - 02-22-2020,
RE: cm2250 rough idle - Rawze - 02-22-2020,
RE: cm2250 rough idle - JimT - 02-22-2020,
RE: cm2250 rough idle - JimT - 02-22-2020,
RE: cm2250 rough idle - hhow55 - 02-22-2020,
RE: cm2250 rough idle - JimT - 02-22-2020,
RE: cm2250 rough idle - JimT - 02-29-2020,
RE: cm2250 rough idle - hhow55 - 02-29-2020
RE: cm2250 rough idle - Rawze - 02-23-2020,
RE: cm2250 rough idle - JimT - 02-23-2020,
RE: cm2250 rough idle - JMBT - 02-23-2020,
RE: cm2250 rough idle - JimT - 02-23-2020,



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