Trouble starting
01-14-2019, 10:16 PM
Join Date: Jan 2019
Location: streetsboro
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Trouble starting
I have a 2001 ultra classic 88'' big bore kit 510 cams and power commander 5... bike has been acting up lately and has trouble starting itll crank and crank and wont start unless i give it throttle once i do that itll turn over and run.. I replaced the engine temp sensor and it didnt do anything, i unplugged the power commander and plugged the stock ecu in and still nothing, cleaned out the throttle body and that did nothing.. I have the magnetti marelli efi in the bike, any suggestions or advice on what to fix would be great
01-15-2019, 08:08 AM
Join Date: May 2018
Location: Las Vegas
Posts: 4,696
I had a similar issue with mine last fall. I could hear the fuel pump run, but there wasn't enough pressure or volume to fire the engine. New pump, filter and in tank fuel lines fixed the problem.
01-15-2019, 08:59 AM
Join Date: Jan 2009
Location: On a Lake, not far from the Gulf
Posts: 2,577
Have battery load tested. Check for trouble codes. Clean IAC. On the '97-98's there is a Key On/ Off proceedure to resynch the IAC to the ECM. Not sure if it is the same for your 2001. If none of that works try 702's suggestions.
01-15-2019, 04:12 PM
Join Date: Dec 2007
Location: Knoxville, Tn
Posts: 4,192
In Tank Fuel Lines
Could be that you have a hole in one of the in tank lines. Checking the fuel pressure would answer that question. It would be worth checking out before you just start replacing things.
01-15-2019, 04:27 PM
Join Date: Jan 2019
Location: streetsboro
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how do you clean iac? idle air control? where is it
01-15-2019, 04:29 PM
Join Date: Jan 2019
Location: streetsboro
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how would i check the pressure? dealership?
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