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7.3L Injectors
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<blockquote data-quote="94xjsport94" data-source="post: 592978" data-attributes="member: 8585"><p>True that on the up pipes. My current truck has international up pipes on it that the PO did after a stock one split. I believe my last truck had a problem with the uvch when I thought they were good. I originally did some trouble shooting and figured out I needed GP's which was obvious from hard starts but the injectors all tested good. With it idling at times I could unplug a side and nothing would change but the entire harness tested out good. I had a buddy selling a OBS truck and I borrowed his IDM for a day to see if anything changed and mine was breaking down under load and at idle but was never consistent enough for a new diesel owner to figure out. Ordered a reman IDM and that problem went away. I still had an issue with wot where the truck had a spot in the pedal where after that you're making boost, felt like it was under or over fueling the engine and it wasn't smoking out the back, it just wouldn't go. Similar to the uvch issue. Looking back on it now there was a lot of carbon build up in those connectors to the uvch that I didn't think about at the time. After seeing how it effects certain machines and pieces of equipment at work it only makes sense that could have been an issue too with the way the electrical part of the injection system works with whatever that higher voltage DC is from the IDM arcing and pitting the pins of the connector there at the VC. DC contacts wear soooo much faster than AC contacts and it never even occurred to me at the time what could be going on.</p></blockquote><p></p>
[QUOTE="94xjsport94, post: 592978, member: 8585"] True that on the up pipes. My current truck has international up pipes on it that the PO did after a stock one split. I believe my last truck had a problem with the uvch when I thought they were good. I originally did some trouble shooting and figured out I needed GP's which was obvious from hard starts but the injectors all tested good. With it idling at times I could unplug a side and nothing would change but the entire harness tested out good. I had a buddy selling a OBS truck and I borrowed his IDM for a day to see if anything changed and mine was breaking down under load and at idle but was never consistent enough for a new diesel owner to figure out. Ordered a reman IDM and that problem went away. I still had an issue with wot where the truck had a spot in the pedal where after that you're making boost, felt like it was under or over fueling the engine and it wasn't smoking out the back, it just wouldn't go. Similar to the uvch issue. Looking back on it now there was a lot of carbon build up in those connectors to the uvch that I didn't think about at the time. After seeing how it effects certain machines and pieces of equipment at work it only makes sense that could have been an issue too with the way the electrical part of the injection system works with whatever that higher voltage DC is from the IDM arcing and pitting the pins of the connector there at the VC. DC contacts wear soooo much faster than AC contacts and it never even occurred to me at the time what could be going on. [/QUOTE]
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