Who would of thought thats the fault?? Must of been scrambling the signal. Totally crazy.
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displaying posts 1 to 6 of 6
Author | Subject: Strange issue i have encountered |
fatlapit
Seasoned Pro Location: STOCKSFIELD Registered: 02 Nov 2010 Posts: 3,040 Status: Offline |
Post #1
Some of you may know i blew 3rd at fcs. I have changed my box. Easy bit done. So i fire her up and shes horrible and not happy. Miss firing not idling being a general pita. So i think vacuum leak and wiring. Either aomething ive not connected or somethings not tight. Nope non of that. So then i started to pressure test all the componants engine side of the tb. Er no problems. So i put her back together again. Still being a b**ch. So i thought hmmm ill plug the laptop in. Nope everything fine there. ffs wat can it be. So i started speaking to my next door neighbour. He says youve not get anything sensetive close to the fly wheel??? No i dont think so. So any way put her away thought nothing of it. So the next day i wiggled some wires and boom fixed awesome i thought. Took her for a test drive. Everything fine on boost iff boost and cruise all spot on. So i thought get home n wash her. So she decided to play up. This time fine on boost horrible for everything else. I get home let her cool and open the bonnet. Instantly looked at the flywheel area. Crank plug sitting right where a plastic bung for the bell housing should be. So i un plugged it and re routed the wiring. Turn the key and shes spot on.Who would of thought thats the fault?? Must of been scrambling the signal. Totally crazy. ________________________________________ |
Posted 29th Jul 2015 at 19:51
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rich_w
Seasoned Pro Location: Havant, Hampshire Registered: 29 Jul 2004 Posts: 5,412 Status: Offline |
Post #2
The crank sensor is very prone to interference being a hall effect sensor. They have a shielded twisted pair cable as standard. What cable has been used on your new loom? If it's not a shielded cable with seperate earth into the ECU for the crank sensor that will be the issue ________________________________________ Contact Details:rich@lynxpowerengineering.co.uk 07732 822546 |
Posted 30th Jul 2015 at 18:45
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fatlapit
Seasoned Pro Location: STOCKSFIELD Registered: 02 Nov 2010 Posts: 3,040 Status: Offline |
Post #3
Its a standard omex loom bud. Ive just re routed the wiring. ________________________________________ |
Posted 30th Jul 2015 at 18:57
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rich_w
Seasoned Pro Location: Havant, Hampshire Registered: 29 Jul 2004 Posts: 5,412 Status: Offline |
Post #4
It would be worth checking to see if you wiring is shielded. Also check to see the cable on the crank sensor isn't damaged ________________________________________ Contact Details:rich@lynxpowerengineering.co.uk 07732 822546 |
Posted 30th Jul 2015 at 21:35
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adam b
Seasoned Pro Location: The Nam Registered: 24 Jan 2006 Posts: 12,828 Status: Offline |
Post #5
Check the connectors in the plug too as they can push back into the plug________________________________________ Nothing to see here |
Posted 30th Jul 2015 at 21:48
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fatlapit
Seasoned Pro Location: STOCKSFIELD Registered: 02 Nov 2010 Posts: 3,040 Status: Offline |
Post #6
Well ive had it plugged in and 2 more sensors. Gotta be the flywheel effecting the signal________________________________________ |
Posted 30th Jul 2015 at 21:59
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