Author Topic: Non Starter= after fault clearance  (Read 1440 times)

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Offline Woodie

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Non Starter= after fault clearance
on: 17 June, 2021, 06:10:25 AM
Well I'm having a bit of trouble.

Recently I replaced the ABS unit on the bike. I had virtually everything off the bike to get to the ABS gubbins but after putting it all back it started quite easily.

However, the engine fault light was on and as it's an MOT fail I decided to clear them. Using a diagnostic it threw up 3 faults (Didn't check what they were, i think one was fuel pressure sensor) but I just cleared them.

Unfortunately after that it won't start.

it turns over quickly.
it has a full battery charge.
it has fresh fuel.

I have not done much diagnostics yet as the tanks full and it's a pig to heavy to get off, but I have sprayed easy start down the air intake but it's still not even coughing.

I don't know much about Bike electronics as I'm more used to points and dizzies so would flashing the ECU using something like TuneECU possibly reset it to factory.
I never touched it, you can't blame me, it went off when I was cleaning it.

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Offline Paullie

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Re: Non Starter= after fault clearance
Reply #1 on: 17 June, 2021, 08:30:59 AM
How did you clear those faults?

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Online Sidewinder

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Re: Non Starter= after fault clearance
Reply #2 on: 17 June, 2021, 11:52:33 AM
I see nowhere in the MOT regs where the MIL is even mentioned.  Cars, yes but not for bikes.

Does the exhaust smell of fuel after cranking?

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Offline Woodie

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Re: Non Starter= after fault clearance
Reply #3 on: 17 June, 2021, 08:02:48 PM
*Originally Posted by Paullie [+]
How did you clear those faults?

Using the diagnostic tool, pressed the 'clear faults' button.
I never touched it, you can't blame me, it went off when I was cleaning it.

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Online tiggersteve

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Re: Non Starter= after fault clearance
Reply #4 on: 17 June, 2021, 08:46:08 PM
Don't know why you thought just clearing the fault codes would sort it ???
think you should have taken a pic of them, as Sidewinder said can you smell fuel?

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Online Sidewinder

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Re: Non Starter= after fault clearance
Reply #5 on: 17 June, 2021, 09:15:20 PM
If it's cranking but not firing it can only be;
No Spark
No fuel
Electronic timing fail (eg. ECU, CPS)
Mechanical timing fail (timing chain)

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Offline Freddy

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Re: Non Starter= after fault clearance
Reply #6 on: 18 June, 2021, 02:02:50 AM
What was wrong with the brakes/ABS unit?

After you replaced the ABS unit it started ok.  But it had a fault code(s) which, after clearing, eng would not start.

I'd reconnect the diagnostic tool and see if it shows a fault now. 
The best substitute for brains is ........what?

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Offline Timbox

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Re: Non Starter= after fault clearance
Reply #7 on: 18 June, 2021, 05:50:28 AM
Do you hear the fuel pump prime when you turn ignition on? 
Ex Sport owner now on KTM 1290 SAS

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Online indytiger1050

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Re: Non Starter= after fault clearance
Reply #8 on: 18 June, 2021, 03:31:00 PM
*Originally Posted by Freddy [+]
What was wrong with the brakes/ABS unit?

After you replaced the ABS unit it started ok.  But it had a fault code(s) which, after clearing, eng would not start.

I'd reconnect the diagnostic tool and see if it shows a fault now.
Agreed,,   

It has been a long while, the ABS unit is not need for the bike to run.  The ABS is a standalone unit that only complains to the ECU when it has a fault, faults don't stop the engine just lights the cluster showing abs fault.
Support the forum.   :031:

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Offline Woodie

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Re: Non Starter= after fault clearance
Reply #9 on: 18 June, 2021, 04:15:26 PM
*Originally Posted by tiggersteve [+]
Don't know why you thought just clearing the fault codes would sort it ???
think you should have taken a pic of them, as Sidewinder said can you smell fuel?


I didn't think clearing the fault would sort it. If you read my original post the engine started after had replaced the unit I was just clearing them before taking it for an MOT.

Only then did it not start.!
I never touched it, you can't blame me, it went off when I was cleaning it.