Hi there,

Put an EL Auto ECU into an EBII (w/ Smartlock) Auto today. Found that it runs the fuel pump constantly (even when in on, does this past the normal priming) and will start only in Limp Home mode (10deg timing, high idle, loads of fuel).

Any ideas as to why? My only guess is that the ECU may be faulty, but thats a long shot. Anyone done this in an Auto before with some tips?

EDIT: Updated post below, originally a faulty ECU was causing LOS mode, still having problems with the Auto however

Cheers,
Jason

Last edited by galapogos01 on Sun Apr 05, 2009 3:49 pm, edited 3 times in total.

BENJ did this same conversion early on in his Sedan build, and i dont think there was such a problem. Along with other people that have done it i know of. Maybe it could be faulty ecu.

LHM is in third gear & unlocked - I assume you mean LOS (limited operating strategy). This IIRC is bugger all advance, injectors pulsing every cycle. It is most likely as you guessed a faulty ECU, as an internal fault usually causes it.
You'll have already guessed to fit another EL ECU - there plentiful and usually cheap.

hm. will have to find another ECU. not happy, wanted to wire this car up with ECU controlled thermos.

I did that by sourcing the wiring/relays/fuse from an EL, and they work fine to my knowledge.

Yeah, it must be the ECU. Put up a wanted ad, if anyone has one kicking about ill trade you a 6 pack for it

Have the fan relay loom already.

Jason

there are a few on ebay atm

Got another ECU and quickly plugged it in to test it today. It ran fine - first one must have been a dud.

Cheers for the replies.

Jason

All,

This conversion is still not 100%. The car is running the original EB auto and with the EL ECU is doing some odd things.

1. It will hold first until 4 grand on mild throttle then slam into 2nd. It seems to do this more when cold.
2. It will kick down very oddly from what seems to be 4-3-2 on mild throttle when going up a hill. It kind of flares then goes into gear then out then back in.
3. It will sometimes flare on a kickdown from 4-2 on heavy throttle at say 70km/h then slam into 2nd.

None of these traits are present when running an EB ECU, which rules out a faulty trans.

Has anyone done this conversion in an Auto with an original transmission - i.e. not with a newer trans? I know there are minor differences in the transmissions from M91 to M93 but I thought none were electrical.

Any help appreciated.

Jason

I'm pretty sure when Benj done it originally to the red sedan, it still had the EB auto. Maybe shoot him a PM, i can't remember there being a trick to it or anything.

Hi.

When I installed the EL GLi ECU in my EB while running the EB Engine and EB Auto, I had no issues at all with shift changes etc. It all worked as it should.

Later I added the EL engine and EL Ghia ECU, still with the EB Auto, and again no issues at all with the ECU or the auto changes.

BenJ

What you seem to be describing is pretty much my exact same problem.

Is your car an EB2 as well?

Bens original car was an EB1 - this might have something to do with it.

Hopefully we can get to the bottom of it. Surely more people than just Ben have done this?

Cheers,
Jason

Mine is an EB 1.

I did the transmission wiring conversion for the EAs/EB1's (the auto is controlled by the BEM instead of the ECU). KOEO comes back with fan errors as I'm running a temp switch and still haven't hooked up the EL wiring. Will do KOER tommorow afternoon as I ran out of light.

I'm pretty sure bens EB sedan was an EB2, his wagon is an EB1

i got the fan errors too. KOER gave me nothing meaningful

Bugger its not the EA/EB1 vs EB2 thing. Wonder what else it could be...

Hey guys.

Re the fans. I tried to get my fans to trigger off the ECU but it just wouldn't play ball. I am still using the Davies Craig temp switch. Mind you, I wasn't using factory relays etc, and my A/C wasn't working.

It also worth pointing out that the EL ECU has additional pinouts that control the Auto Climate and the A/C in the EF and EL cars. If these wires are not receiving the expected info, the ECU may not know what to tell the thermo fans what to do.

Everything else worked fine though.

Oh, and my First Sedan was and EB11 Non Smartlock.

BenJ

I had the auto problems you described when I put an EL ecu in my EA. Turned out to be a faulty wire I had put in, the S5 one. Was getting a bit of resistance on it so it must have shorted out somewhere. Ran a new one and it's good as gold.

The same problem with my son's NC Fairlane 91. Engine was swapped to 4L, auto from EB1, TCU removed, Smartlock system fitted, Was controlled by EB/ED XR6 ECU- don't like shifts at all, 1DKC works much better, but still not right.

Guys,

Still having problems here. We put the EB ECU back in as the car was undrivable with the auto misbehaving.

Any ideas? Harsh shifts make it seem like a line pressure issue, but the odd shifting on a mild kick down was a bit weird. None of this behavior with the EB ECU. No faults were thrown on the EL ECU which gave any hints as to what it might be, so we're left scratching our heads. Could it be a marginal inhibitor switch, or something like this?

Jason