Have you timed the sensor to the front cylinder TDC mark during firing stroke?
(I know you probably have, but you could have done it to the rear one................)
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| non starting xb 12 https://ukbeg.com/forum/viewtopic.php?f=8&t=2909 |
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| Author: | quattroman [ 06 Oct 2009 22:18 ] |
| Post subject: | non starting xb 12 |
my xb 12 which was still runing after a crash 1year ago will not start after having been rebuilt. it turns over and fuel pump runs ,shows no current codes but does not spark or inject. any ideas out there? |
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| Author: | pash [ 06 Oct 2009 22:24 ] |
| Post subject: | Re: non starting xb 12 |
Does the fuel pump run when you turn the key? |
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| Author: | kevmean [ 06 Oct 2009 23:05 ] |
| Post subject: | Re: non starting xb 12 |
Cam position sensor not connected correctly if the looms been messed around with so the ecu doesn't realise the engine is turning over? |
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| Author: | quattroman [ 06 Oct 2009 23:11 ] |
| Post subject: | Re: non starting xb 12 |
fuel pump runs and there is a return signal from cam sensor to ecu. |
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| Author: | Lands End [ 07 Oct 2009 00:22 ] |
| Post subject: | Re: non starting xb 12 |
Have you timed the sensor to the front cylinder TDC mark during firing stroke? (I know you probably have, but you could have done it to the rear one................)
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| Author: | Maz [ 07 Oct 2009 11:43 ] |
| Post subject: | Re: non starting xb 12 |
..and check earths to the ecm. |
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| Author: | Davidxt [ 07 Oct 2009 18:49 ] |
| Post subject: | Re: non starting xb 12 |
faulty crank position sensor? |
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| Author: | quattroman [ 07 Oct 2009 19:02 ] |
| Post subject: | Re: non starting xb 12 |
checked all earths ,think cam sensor o.k as it is returning a signal,will check timing, i do not think it would stop it sparking and injecting ??. has anyone come across ecu failure . |
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| Author: | AndyC [ 07 Oct 2009 20:58 ] |
| Post subject: | Re: non starting xb 12 |
Check all the plugs are pushed in fully to the ecu - I had similar problems after disconnecting various bits and thought everything was in tight - so, eventually, I unplugged the ecu and fully rehoused the 3 plugs - boy did I feel stupid - then the battery goes and ***** itself. AAAAArgh!!! |
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| Author: | milkster [ 07 Oct 2009 22:12 ] |
| Post subject: | Re: non starting xb 12 |
Hi have the connections behind the belt cover been unplugged at any time?? as two plugs both have three pins and are the same triangular body and will fit together their only difference is one is black and one is grey....worth checking... |
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| Author: | quattroman [ 10 Oct 2009 22:02 ] |
| Post subject: | Re: non starting xb 12 |
hi milkster go to the top of the class, yes after weeks of checking all the parts i thought might be broken, i discovered some plonker had got the 2 3 pin plugs the wrong way round. changed them back and tried it ,fired up on rear cyl think front plug fouled. |
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| Author: | Maz [ 10 Oct 2009 22:50 ] |
| Post subject: | Re: non starting xb 12 |
Quote: think cam sensor o.k as it is returning a signal, So if it was connected to the speed sensor.......how was it returning a signal ? 
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| Author: | quattroman [ 12 Oct 2009 23:41 ] |
| Post subject: | Re: non starting xb 12 |
I was getting a signal at the ecu ,the wrong one, as it was connected to the speed sensor , as you have pointed out .at the time i was turning the engine over with the rear wheel which ment the speed sensor was active. |
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