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Topic: Sparkless...... (Read 398 times) |
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Dave
Senior Member
Tourmallard 24v (ex-owner)
 
Posts: 1984
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Sparkless......
« on: Oct 10th, 2005, 9:47am » |
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Morning all,
right, any ideas what could cause a lack of spark, but not record any fault codes?
Current plan is to check, as per Eric's suggestions on t'other post, the DIS module and connections, and the ED module.
Any ideas welcome 
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Dave
Senior Member
Tourmallard 24v (ex-owner)
Posts: 1984
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Re: Sparkless......
« Reply #1 on: Oct 11th, 2005, 2:45pm » |
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... and surely the fuel pump fuse (number 42, next to battery, 15 amp) should have 12 volts when the ignition is on, or at least when cranking?
Because ours doesn't, is this right?  It gives 12 volts for half a second when the ignition is switched on then drops to about 0.1 volts, even when cranking.
Any thoughts?
Thanks
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martin_rowe
Full Member
I love YaBB 1G - SP1!
Posts: 879
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Re: Sparkless......
« Reply #2 on: Oct 11th, 2005, 4:11pm » |
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Pump may not kick in untill oil pressure light goes out, the initial burst is just to start with.
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Dave
Senior Member
Tourmallard 24v (ex-owner)
Posts: 1984
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Re: Sparkless......
« Reply #3 on: Oct 11th, 2005, 5:53pm » |
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Thanks Martin.
Also the EDIS (where all the leads plug into) seems to be getting 12v successfully but it not putting out a spark to the plugs. Is this something that gives trouble?
Cheers
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martin_rowe
Full Member
I love YaBB 1G - SP1!
Posts: 879
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Re: Sparkless......
« Reply #4 on: Oct 12th, 2005, 8:36am » |
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it needs to be triggered, in the old days thats what the points did in the distributer, if you havea test light, put one end on the pos bat terminal, probe the wires at the coil pack, you should get a 'flash' when cranking if all is ok, a problem with the crank sensor / wiring is still favorite though, loom in the 'V' is another to check, they can crack & short, if poss check crank sensor signal back to the ECU, while that is out you can check the power feeds & earth paths to it.
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Dave
Senior Member
Tourmallard 24v (ex-owner)
Posts: 1984
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Re: Sparkless......
« Reply #5 on: Oct 14th, 2005, 11:04am » |
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for info - crank sensor is getting a voltage ok, now looking at ED module and DIS
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martin_rowe
Full Member
I love YaBB 1G - SP1!
Posts: 879
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Re: Sparkless......
« Reply #6 on: Oct 14th, 2005, 11:16am » |
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its not what its getting its the output signal getting to the ecu that you need.
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malcolm
Junior Member
1998 2.3 ULTIMA ESTATE
Posts: 55
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Re: Sparkless......
« Reply #7 on: Oct 14th, 2005, 9:23pm » |
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I believe the fuel pump relay also needs an input spark signal so this could be why your pump supply is not working and would point to a loss of the signal
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