HELP!! No throttle

[AndyEG]

As far as I know, if left with no power at all, the memory is erased, along with the "learnable" parameters that are self calibrating as you drive for the first time
These learnable parameters are there because not every engine/sensor/pump are ever exactly the same
The system soon learns and adjusts over a period of miles with variable driving

So if the engine sounds a bit harsh and or full power isn't there immediately, don't be too bothered, as it will sort it's self out within a few miles
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[mikeldv]

I got another pedal today which checked out OK ... still no throttle I'm guessing that (unless the ECU or pump are knackered) that it must be a wiring fault? Not having any luck finding someone with the Laser thingy to read the codes yet so looks like my holiday will be spent under the bonnet or trailing round more scrappy's ... I really don't want to pay for a tow to the dealers if I can avoid it. Thinking hard about changing to a manual pump setup ...

[tim]

[supadik]

I agree, don't waste your time or money repairing what can only be described as the worlds worst pump/ecu combo EVER made.

Look on ebay or at the scrappers and find a Bosch manual pump off an extra long wheel base Di transit 17 minibus or luton, the long number must end 145 or 146 as said above. You should be able to pick the lot up for around £100. You'll also need the throttle pedal,cable and injector pipes. From the motor factors you'll need a new timing belt. The epic pulley fits straight onto the Bosch so no probs there.

Swapping the pumps over isn't a bad job although I do recall inventing some new swear words while I was trying to thread the injector pipes through the intake manifold lol.

If you're reasonable handy with the old spanners you'll easily do the conversion in a weekend, probably complete it on the Saturday leaving Sunday for "testing".

After the conversion you'll have the reliability of the none turbo Di's plus better fuel economy and bags more torque than the Epic every gave you.

If you want to go the manual pump route let me know and I'll right a step by step guide if you need it.

Rich

[bigbeefy]

90% of the time its NOT the pump or ecu needing replacing

lets face it electronic pumps ecu combo are the norm now they are fitted for a reason
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total-ldv-sherpa first b'day on the 4th of oct join in on the chat for fun on the night

[tim]

[supadik]

Yep electronic pumps and ecu are fitted as standard now to meet exhaust emission requirements but many of them are very unreliable. Just look at the rate transits eat through duratorc (spelt wrong??) pumps!

The problem with the epic system is that it was a very earlier system and is inherently unreliable and difficult to diagnose and repair.

The minibus of mine that had Epic developed a fault when it was 5 months old. Even though it was still under warranty it was never rectified as none of the LDV dealers could figure out what was wrong as the fault was intermittent.

I had the fault for 10 years before I did the conversion to manual pump and I was so pleased once I'd done it. No more horrible lag when you change gears, more power better economy (it goes up all the hills on the school run a gear higher now) and best of all no check engine light to worry about

Well worth the £80 it cost me for the parts. That doesn't include the timing belt as I did the conversion when the belt was due.
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If I buy and fit parts fast enough I will one day (and only for one day) own a fault free LDV

[mikeldv]

Update:

Sorry for the long absence, been away on holiday without the van (boo hoo ) and then started looking for someone to check out the ECU. I found a firm called Tamar Electronics in Devon who offered to test the ECU for £30 which would be waived if they did the repair job.

Turns out that there were 5 'mechanical' problems with the wiring etc due to water ingress as well as component failure. The guy there (Neville) said that LDV Convoy ECU's that he has had in for repair were almost exclusively due to water damage ... so that's nothing to do with a cr*p system, it's cr*p design that puts the ECU where leaks from the wiper spindle and/or windscreen can get in it ... as well as the case for the ECU having two holes in the top of it by design!!!!

£200 later, the ECU is in the van and it's working AOK, no light of doom any more ... I'm a happy bunny That may sound like a lot of money, but it was a lot less work than changing the fuel pump etc and probably not that much more than a half decent mechanical pump and all the other bits. It takes about 5 mins to take the ECU out or replace it, using an 8mm socket for that and the same with an extension to reach the cover over the plug which is under the bonnet.

BTW, I've used sealant to plug the holes in the case and to fix a plate over the top of the ECU multiplug (between the bulkhead and the top of the ECU case) to stop the leaks from causing the same problem again!

[Ashlea]

Good result

I'm glad you persisted with the diagnosis, as it seems many will blame the pump for what often turns out to be a wiring or sensor fault, and with the Convoy's leaky screen problems, the poor old ECU has a struggle to keep going when under water

Contrary to popular belief, many of these EPIC systems survive into high mileage, and old age without any problems whatsoever
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1996 Pilot 2.6t 1.9 xud9 diesel

[bigbeefy]

see i did say its not always the pump

but if you had replaced the pump etc with the manual version it would of fixed the van

im glad you did it the correct way
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total-ldv-sherpa first b'day on the 4th of oct join in on the chat for fun on the night

[mikeldv]