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Supercharged 2.4
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Discussion Starter #1
I'm in the process of figuring this all out. My plan is to retain the stock 2.4 EFI system and swap the 2.4 manifold for a cut down 3.0l with a larger throttle body. The engine arrived to me with the manifolds and all wires disconnected. I have the complete wiring harness and ECU. The engine is from an Opel Omega A. I am having a heck of a time finding the wiring diagram for this FI system. Are there any members here who have experience with the stock 2.4l injection system?







Diagrams or pictures would be great!
 

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Supercharged 2.4
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625 Posts
Discussion Starter #3
I'd be happy to take a look at the documentation! Any information is better than no information.
 

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Your Noble Friend ;-)
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4,208 Posts
One of our European members could get a copy from an Opel or Vauxhall dealer.

Dieter
 

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Supercharged 2.4
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625 Posts
Discussion Starter #6
You're a better speller than me. :)
Its at the shop in paper form it'll take a me a few days to scan and post.
haha sorry I didn't even notice your misspelling. I'm not a cunning linguist :). Thanks for your help! I also discovered through my searching that this particular EFI system was also available on some of the 5 series BMWs.

One of our European members could get a copy from an Opel or Vauxhall dealer.

Dieter
Do you know if there are repair manuals for the Omega A 2.4 in English?
 

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Member
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583 Posts
Wiring or schematic of Motronic.

This evening I will take a look in the manuals I have. There are several that cover the various types of Bosch FI. If I have anything I will send the name of the publication(s).

I think I have a spare ECM for that system as well. I will let you know.

Dave
 

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Super Moderator
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5,298 Posts
Just look at BMW 5-series manual

haha sorry I didn't even notice your misspelling. I'm not a cunning linguist :). Thanks for your help! I also discovered through my searching that this particular EFI system was also available on some of the 5 series BMWs.

Do you know if there are repair manuals for the Omega A 2.4 in English?
. . . make it easy on yourself, why not just look at a BMW 3/5/6/7 series manual . . . in US they're all in English and Motronic is Motronic is Motronic!

A small word of caution though, all the cars you mention are at least 6-cylinder cars and Motronic is, I believe, sequential (per-cylinder timed) injection versus the gang-fired injection of Bosch FI systems prior to that.
 

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Supercharged 2.4
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625 Posts
Discussion Starter #9
. . . make it easy on yourself, why not just look at a BMW 3/5/6/7 series manual . . . in US they're all in English and Motronic is Motronic is Motronic!

A small word of caution though, all the cars you mention are at least 6-cylinder cars and Motronic is, I believe, sequential (per-cylinder timed) injection versus the gang-fired injection of Bosch FI systems prior to that.
Not a bad idea on the manual. The efi I have is for the engine I have so that should be fine. I think there will be minor differences between the BMWs efi (few extra wires) but the majority of it may be close enough for me to use the diagrams.
 

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Vendor
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2,428 Posts
Volvos also used motronic systems similar to the 2.4 you have.
 

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After researching this problem theres several things to work around.
Seems the Bosch group was changing pinouts on the pcms like we change underwear.
So after running into a dead end I called a friend.
He's got the info but will need to load an archived disc.
Cross your fingers..
 

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Supercharged 2.4
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625 Posts
Discussion Starter #12
After researching this problem theres several things to work around.
Seems the Bosch group was changing pinouts on the pcms like we change underwear.
So after running into a dead end I called a friend.
He's got the info but will need to load an archived disc.
Cross your fingers..
Thanks! *Fingers Crossed*
 

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Supercharged 2.4
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625 Posts
Discussion Starter #13 (Edited)
I figured most of it out with the manifold in place. Some of the wires had labels however most didn't. There were only two I couldn't decisively determine where they went.

For anyone else who ends up searching for this information the Omega A only came with the Motronic 1.5 and Motronic M 1.5.4, so that should narrow your search into what other cars came with the same EFI.
 
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