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Thread: HPDI Rebuild Issues
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08-01-2022, 08:04 AM #1New Member
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HPDI Rebuild Issues
I got my motor rebuilt high-pressure fuel pump rebuilt injectors sent off and professionally cleaned. My mechanic says it will IDLE great while trimmed up but as soon as he trims down it sputters and dies.
Lots of suggestions from guys in the know
Link an Sync, Clean an Replace filter in VST, LP fuel pump replacement, kinked fuel hose. Is there anything else I’m missing. Making a list for mechanic for things to check before I have to bring to dealer. Thanks for the info
Andrew
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08-01-2022, 09:06 PM #2
Welcome to scream and fly. Help will be along shortly. I’m a carb guy. Sorry
1990 Shadow bass boat w/ 2.4 200 Merc. Totally resto'd boat and love it!
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08-02-2022, 11:40 AM #3New Member
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Fixed isssue in VST. Went out and tested won’t rev above 3 k on 4 cylinders in forward but wil runs on all 6 in reverse and revs up. His software bit the dust waiting on replacement. Said he replaced Netutral safety switch and Shift position switch. Thanks
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08-10-2022, 11:07 AM #4Junior Member
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08-15-2022, 11:39 AM #55000 RPM
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Sounds like the shift switch is not adjusted correctly and not allowing the computer to recognize forward gear. Could be as simple as the shift cable adjustment. Does it want to grind when shifting into forward and not reverse?
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09-16-2022, 09:46 AM #6Junior Member
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No grinding. Thinks he has it narrowed down to bad TPS, Installing tomorrow
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10-28-2022, 09:03 AM #7Junior Member
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Looks like it's down to the ECU hopefully I'm out of $$$
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