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Message: [QUOTE="hellerb68, post: 1128617, member: 8942"] I have a 97 250 with 223,000 miles. The last 2 months it has had an excessive unburnt fuel smell from the exhaust. Some smoking but subsides. I have been trying to chase it. I do have a p1280 code, which is the icp, and have tested the hpop (60-90) gets to 2500 psi then drops to 1700 psi about 5-10 sec. I am going to do a diagnostic check. I need to look at the DC's and do a cct on the injectors. Is there anything else that could be my problem, am I leaving anything else out. I have minimal blow by (almost none). Any help would be appreciated thanks. [/QUOTE]

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