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Which ECU?
Cozza - 30/8/11 at 08:58 PM

I've got a part-built kit with a red top but without an ecu. How do I know which one I need? It's got a dispac on it but I don't know which Vauxhall the engine came out of.
Thanks

[Edited on 30/8/11 by Cozza]

Ben_Copeland - 30/8/11 at 09:06 PM

Are you running original injection or carbs/throttle bodies?

If the first you could get a ECU M2.8 from a later Astra gsi

if second, most aftermarket ecus might be ok... Megasqurt/jolt. once again depends if carbs or tbs?

Cozza - 30/8/11 at 09:13 PM

Thanks. Is that the only one that will work?

RK - 31/8/11 at 02:40 AM

go with whatever stock was to begin with. Once you start using aftermarket ECU's, you have more in that than your engine. I know I do.

Ben_Copeland - 31/8/11 at 06:57 AM

Yes if you have stock engine with original injection then that's the ecu. The earlier ecu worked with distributor.

Cozza - 31/8/11 at 04:22 PM

OK. Thanks very much!

Cozza - 31/8/11 at 04:33 PM

What about an ecu from a Cavalier GSi?

Ben_Copeland - 31/8/11 at 04:34 PM

quote:
Originally posted by Cozza
What about an ecu from a Cavalier GSi?


Maybe a later one.. but my cavalier gsi was dizzy not dizzyless and not turbo one either obviously

MikeRJ - 31/8/11 at 05:08 PM

All of the distributor-less C20XEs would have been fitted with a cat and oxygen sensor wouldn't they? Can you run them with this disconnected without it throwing error codes and possibly limp home mode?

Ben_Copeland - 31/8/11 at 08:02 PM

quote:
Originally posted by MikeRJ
All of the distributor-less C20XEs would have been fitted with a cat and oxygen sensor wouldn't they? Can you run them with this disconnected without it throwing error codes and possibly limp home mode?


If he;s IVA'ing it, he'll probably need cat and lambda anyway

Cozza - 31/8/11 at 08:15 PM

I've got a cat already - in the custom made exhaust. Where in the system should the lambda sensor go?

Ben_Copeland - 31/8/11 at 08:19 PM

Just after the last collector, before the CAT