Delta integrale 8V ECU wierd problems

**Steve Webb** · 24-08-12, 08:23

Damn that motor looks brand new. This is now getting to be a really weird problem.

Is the block etc originally a Delta 8v unit?

From what you have said there is no reason I can see why it shouldn't work, yet it doesn't even with multiple ECUs.

Have you got the part number for one of the ECUs that work, and one that doesn't.

I think the standard 8v is IAW 049 WH4E.03/0A0_F6

If we can see what is different between the two, we might be able to figure out whats wrong.

**ebh-mor175** · 24-08-12, 12:03

belidirkac : have you try to exchange the chips between the 2 ECU ?

On my Delta Integrale 16V, suddenly the program on the chip was corrupted

**belidirkac** · 26-08-12, 08:19

Hi,

Thank you. The car has been completely restored in the last 6 years... I have a thread going on Guy Crofts forum.

In short:

BEFORE:

After a lot of cutting and welding came sandblasting and primer:

Than the paintwork:

And the almost finished car:

Of course all the bits got the same treatment!

I tested with this ECUs:

#1 - WH4WE.03/0A0.F6

#2 - WH4WE.03/0A0.F6

#3 - WH4WE.03/0A0.F6 FITTED WITH EVOCARS TUNING EEPROM

#4 - I have 3 additional eeproms 1 original and 2 modified and I swapped them between ECUs and no result!

The working ones:

8V KAT - WH47.08/8PI.55

Dedra turbo - WH473.08/8PI.CB

I noticed yesterday that if i change the ECU when the engine is hot I get a reasonably stable idle without cutting out but as soon as you touch the throttle the engine revs drop. As if you are only letting more air into the engine but no petrol maybe???

**Steve Webb** · 02-10-12, 12:05

Originally Posted by belidirkac

I tested with this ECUs:

#1 - WH4WE.03/0A0.F6

#2 - WH4WE.03/0A0.F6

#3 - WH4WE.03/0A0.F6 FITTED WITH EVOCARS TUNING EEPROM

#4 - I have 3 additional eeproms 1 original and 2 modified and I swapped them between ECUs and no result!

The working ones:

8V KAT - WH47.08/8PI.55

Dedra turbo - WH473.08/8PI.CB

I knew someone would know the module codes. These are the various ECUs that have been used.

**Brul(tm)** · 02-10-12, 12:40

1NRO is looking in to it, i read on the forum of Guy Croft

**ebh-mor175** · 09-10-12, 12:23

perhaps the PMH sensor ?

**belidirkac** · 09-10-12, 18:07

I managed to connect using the M6-B module and tricking the tester to think it is connecting to a 8V KAT ECU.

On the 8V KAT ECU I don't get any errors but when I connect the OE ECU and hit the 2800rev mark it reports an ignition errror.

Suposse to be the trigger sensor or the phase sensor... Both have the resistance well in the specified tolerances (checked again today) and I have no idea what could be wrong with this two sensors if they seem to be working with other ECU's...