VGT
Discussion in 'International Forum' started by Mr Bob, Oct 27, 2023.
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What program software do you have? If you have Navistar software, you need to run KOEO standard test first before anything else for engine off tests, or KOER standard test before engine running tests. When it is acting up again, key off, unplug the egr valve and road test again.
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running texa. can do koeo and koer and others. dodono why but symptoms vary. sometimes the first one or two starts it will slowly die out. actual icp can be much higher when pressing throttle and its bogging and puking lots of gray smoke. found a cheap backpressure sensor. gonna throw that at it this week.
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well that didnt work. lol
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Have you checked the fuel pressure?
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This truck is killin me. start engine do some throttle blips and after a few it runs bad. did this a few times to confirm a pattern. try to scan it and it clears up. no codes just runs normal. at one point it ran rough but clerared up. just ran it again this morning and it runs normal. lol
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Is there a quick coupler on top of the filter housing cap?
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it probably has one. i normaly use the schrader port.
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put it all back together. drove it around and all was good. the next startup its back to running bad. time to light it on fire. lol
wish i had a picoscope.
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
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