pre egr isx rough idle
Its a 2003 volvo 770, with pre erg cumins six. 1.2 m miles and fresh inflame. Has been doing rough idle, i thought inflame would solve the problem since i put everything new . Still rough idle , drives smooth . It really idles rough especially when you first start in the morning. Threw barometric pressure sensor code one time , took it to cummins dealer and no code observed. All fuel parameters seems right according to them, cut out test shows injectors work ok. Seems like its sucking air somewhere. Just want to know if anyone experienced this before and how it was solved coz cummins are scratching their head on this one. Motor took almost 30k , only thing old was the main block ,otherwise everything under the hood is new. Any help would be greatly appreciated. Thanks in advance.
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