Question about Harley Davidson FXST Softail Standard Motorcycles

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PC III USB went bad after logging in errors of fuel pump IAC and crank sensor....fixed problem by replacing same PC III USB from my bike and loading correct map closest to mods made...2001 softail standard EFI 1450cc modified to 97cid computer head work and porting with proper upgraded in springs and 57 Andrews cams and upgraded fueling cam plate and high volume oil pump.....after 2 months of great riding it started missing and sputtering again. Would certain modNo adjustment was made from closest map...hypercharger with V&H staggered pipes not short or long shots...........TIA

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Please give me a better discripion I work with these all the time Did you put new cam bearings in case I want to help you OR call me 903-917-8500 Thanks MOPAR KENNY

Posted on May 22, 2011

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What else could cause a no start condition turns over ok occasionally it will fire

Fire when? as you release the key? If so replace the ignition switch. If you have fuel and spark it should start unless it is way out of time or the security is set. Another thing to consider is the spark plugs. Since you have had so much gas threw the engine, they may be fouled out.

Feb 05, 2015 | Cars & Trucks

1 Answer

Engine lockout

have you tried holding the gas pedal down a little to see if it starts that way,if it starts then your throttle body/ IAC is dirty,if that didnt work, check for fuel pressure if you dont have a pressure guage you can un-clip the fuel line at the eng have a small plastic jug to catch the gas and have someone just turn the key to run ( not cranking it over) and see if a shot of fuel comes out of the fuel line,then have them crank it over and see how much gas comes out-if nothing or very little then you may have a plugged fuel filter or bad pump,or a bad fuel pump relay-if gas comes out,then it could be cam sensor or a crank sensor problem,assuming every thing else is good-you didnt say if the coil pack was new or used,or if you checked for spark,but a scan tool would give you a code for either the cam or the crank sensor or any other relavent code.A bad PCM will also stop the spark and the fuel,I hope this is helpfull

Apr 17, 2014 | 2001 Chrysler PT Cruiser

2 Answers

Fuel pump went bad fixed that now my car wont start

Now you check fuel pressure at motor with a gauge

Also check for spark & injector pulse while cranking

Dec 15, 2012 | 1996 Nissan Maxima

1 Answer

Will a bad iac cause a no start

Hi Mike,

Check to make sure you also have spark. The crank sensors on these engine are notorious for intermittent operation. A faulty sensor cuts off spark and fuel together. I would also double check for voltage to the fuel pump. If you have voltage and can not hear the pump, I would suspect a bad fuel pump. The fuel pump relay should be changed with the pump too.

Feb 26, 2012 | 1996 BMW 318

1 Answer

1999 Chrysler 300M, Dies on deceleration and at idle when warm. I can some time see the tach go to 0 rpm, with out the car actually dying I have had may suggestions, from EGR, throttle Body, fuel...

For the price of a can of throttle body, spray cleaner, I'd remove the IAC motor , clean it, and port it came out of and try it and see what happens. It sure sounds like the same old dirty IAC problems that are frequent . Normally that will cure it, and if it does, but problem re-occurs later, replace the IAC motor. (IAC= Idle Air Control.) Regulates idle under load such as AC on, turning, braking etc, to step up idle to eliminate stalling when off the throttle.86cdd45.gif

Oct 14, 2010 | 1999 Chrysler 300M

1 Answer

I changed my fuel pump and it didn't fix the problem i had. the car would start and then sometimes it wouldn't start

most likely a bad crank sensor,very common on the front side of engine block by the oil filter,,,,fuel pumps rarely went bad on those cars,crank sensor like $115,

Feb 21, 2010 | 2004 Saturn VUE

2 Answers

Vehicle died while driving it, replaced the fuel pump, it started and then died again, will not start

fuel...bad fuel...Sorry to say it but someone has sold you bad fuel and there may be water in your furl system...good luck

Nov 11, 2009 | 2004 Hyundai Santa Fe

2 Answers

03 flhtcui coming to stop eng died , restarted but would not idle under 1000 rpm

Mine was having this problem, I found the Battery cables loose. I guess it needs more voltage then the engine puts out under 1000rpm. Tightened + and - terminals.. Problem went away.

Nov 08, 2009 | 2003 Harley Davidson FLHTCUI Electra Glide...

1 Answer

93 Impreza L Crank no start

Try replacing the coolant temp sensor. I was baffled with the same issue until I sat down and searched the web for like 8 hours! This is finally what came up. Seems like alot of people have this issue. My 95 started with the fans going constantly and then one day just refused to start. My dad also recommended changing the o2 sensor and the thermostat. All cheap and not a bad idea to replace anyways.

Apr 16, 2009 | 1993 Subaru Impreza

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