marcinbrighton
New Member
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- 283
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- Hove, East Sussex
Cheesed off :( in need of help please guys sorry....
- Thread starter neo2
- Start date
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strange_days
New Member
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Voltage to the coils but no spark, am I being simple or does that not point at failed coil pack?
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My thoughts exactly - if you read back, we have been toying with the idea of Crank and coils....
Thats assuming the BeCM and the Engine ECU are actually talking to each other!
Allyipod
Active Member
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- NE of Glasgow 15 miles
I don't think it is the coil packs as it is unlightly to get both failing at the same time.
Have you checked the earth feeds to becm & ecu? You may have shorted one of the "Capacitor Links" on the earth side drawing ref. Z285 (s521).
I think the coils are activated by ECU switched earth.
Otherwise I'd Check gearbox ECU for Park signal & transfer box in high.
just thought I would add my 2 pennath
I think the coils are activated by ECU switched earth.
Otherwise I'd Check gearbox ECU for Park signal & transfer box in high.
just thought I would add my 2 pennath
marcinbrighton
New Member
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- Hove, East Sussex
Unless the short at the fuse box damaged them both at the same time?
Allyipod
Active Member
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Coils are supplyed from ECU so it would be fried before the coils.
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Please read back - most of this has been tried....
Engine turns over so GB is fine - if in anything other than P or N the engine wouldn't crank!
Engine turns over so GB is fine - if in anything other than P or N the engine wouldn't crank!
Grit Valve
2000 4.6 Vouge
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Agreed but nowhere can I see that the ECM has been tested apart from where it was bought ?????
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And how would you suppose testing it??
Rob hasn't got a scope to measure the pulses on.....
Again read back - i mentioned this a good number of posts back about how the ignition system fires the coils....and the need for a 'scope to measure the coil firing pulses....
Datatek
Well-Known Member
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To me there remains a query over the replacement BECM, I believe the early BECM is different to late, is it compataible with your engine ECU? I have no definate knowledge of this, but so many things change on LR products that have caught me out that I though it worth raising.
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I am think the same as the ignition system is simple enough - if the coils are new/good, the crank sensor is new, the BeCM is pulling in the Ignition relay (he has power to the coils) but the ECU isn't firing them - it can only be the link between the ECU and the BeCM left.....I assume(d) Doug has synced these two together following his visits....hence why the only things left in the system i suggested would be coils and crank....but if the ECU and BeCMstill aren't talking correctly there is little else in the system to cause isses...
The capacitor links are in the positive side of the feed to the coils and earthed to act as noise surpression.
Grit Valve
2000 4.6 Vouge
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There is only one way,on another car you can't rely on a breakers they will tell you any old poo just to sell the item especially electrics look at the one I posted earlier no returns I wonder why that is if it were me I would have doner car waiting to test in front of where I bought it or I guaranteed return if faulty you can't just keep sticking things on in hope the only good thing so far was the free test fuse box shame it wasnt the ECM as well to be sure, if the ECM is fried its not going to tell you what else is fried is it ...
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Grit Valve
2000 4.6 Vouge
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Autos and manuels are differnt for a start
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True - but Rob hasn't got access to a donor P38 - unless anyone else is local with an ECU he could test with??
Grit Valve
2000 4.6 Vouge
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Well until you know that's good why carry on
Datatek
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If you read back D300, Rob seems to think Rick can help....
Rick can test ECUs the average owner has limited ability to do so...so maybe Rick and Rob can do business.....
Grit Valve
2000 4.6 Vouge
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Here are just a few diesels err 7300
6114
4310
7301
Thor I can only find 2 100470/ 100660
6114
4310
7301
Thor I can only find 2 100470/ 100660
Datatek
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In the set up you can select petrol or diesel, but I'm not sure that all engine ECU possibilities are covered in the early BECM
