Following on from my newbie intro, here's a bit of background before I get stuck into it!
I have a 1995 VW Microbus, built in SA with a 2.6 litre 10v "ADV" engine. I recently aquired a 7A engine with no loom or ems that had been previously run on lpg only in the back of a mid-80's VW pickup truck (this sort of nonsense isn't that common as they're mostly mpg-obsessed TDi converters who run out of gears. Takes all sorts!) which I will raid for it's head, manifolds, front end and anything else as required to fit to the ADV bottom end. Should be quite nice when done.
I had the bus put on lpg (a whole other tale) as it's 10:1 and really likes ~100 octane, plus you can't argue with 71p/litre.
The ems is a unique local-market Bosch of SA Motronic variant (55 pin ecu) which is a MAP sensed, fully mapped system but with batch-fire injectors (Bosch) and a Hall-effect distributor so it's a right old mash-up that was working fine...
Then it developed a strange fault. Starts on the button on either fuel, idles ok but won't rev more than 1500 and just cuts out and stalls. No misfiring, it's like the ignition has been switched off.
Does this sound familiar to anyone with extensive Bosch ems knowledge?
The replacement list includes throttle pot, dizzy, MAP sensor, coil, leads, plugs, ignition switch, in fact everything but the ecu. I thought I'd found a bodged repair in the distributor tail and it behaved itself again but only lasted a few hundred miles then died when I popped out on a short journey a couple of days ago. Came back out after popping in to local fabricator's shop and it stalled as I tried to pull out of a parking bay. Got towed home by the old man...
I could get a replacement ecu from SA but it will be used/checked and a good £400 which is most of the cost of a Megasquirt V3 system, so that's the route I want to go unless there's something out there that is better for the money?
The most important thing is that whatever system I fit must have OEM reliability, support full dual maps for petrol and lpg and have an extensive knowledge base in case of any problems in the future.
What does anyone think before I go and shell out? I'm bound to be asking a lot of daft questions as I get to grips with marrying the two halves of the engine together
I have a 1995 VW Microbus, built in SA with a 2.6 litre 10v "ADV" engine. I recently aquired a 7A engine with no loom or ems that had been previously run on lpg only in the back of a mid-80's VW pickup truck (this sort of nonsense isn't that common as they're mostly mpg-obsessed TDi converters who run out of gears. Takes all sorts!) which I will raid for it's head, manifolds, front end and anything else as required to fit to the ADV bottom end. Should be quite nice when done.
I had the bus put on lpg (a whole other tale) as it's 10:1 and really likes ~100 octane, plus you can't argue with 71p/litre.
The ems is a unique local-market Bosch of SA Motronic variant (55 pin ecu) which is a MAP sensed, fully mapped system but with batch-fire injectors (Bosch) and a Hall-effect distributor so it's a right old mash-up that was working fine...
Then it developed a strange fault. Starts on the button on either fuel, idles ok but won't rev more than 1500 and just cuts out and stalls. No misfiring, it's like the ignition has been switched off.
Does this sound familiar to anyone with extensive Bosch ems knowledge?
The replacement list includes throttle pot, dizzy, MAP sensor, coil, leads, plugs, ignition switch, in fact everything but the ecu. I thought I'd found a bodged repair in the distributor tail and it behaved itself again but only lasted a few hundred miles then died when I popped out on a short journey a couple of days ago. Came back out after popping in to local fabricator's shop and it stalled as I tried to pull out of a parking bay. Got towed home by the old man...
I could get a replacement ecu from SA but it will be used/checked and a good £400 which is most of the cost of a Megasquirt V3 system, so that's the route I want to go unless there's something out there that is better for the money?
The most important thing is that whatever system I fit must have OEM reliability, support full dual maps for petrol and lpg and have an extensive knowledge base in case of any problems in the future.
What does anyone think before I go and shell out? I'm bound to be asking a lot of daft questions as I get to grips with marrying the two halves of the engine together
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