Engine swap help

[Bodderrz]

Hello fellow zedheads

I've owned my 1.9 z3 since I was 19 and 3 years ago I had major oveheating issues, so I just set the car aside and went travelling, however now I've returned I've decided I'm going to swap out the engine so I purchased a 98 m52....

I've removed the m43 which was simple enough but am super confused with the engine harness... the m43 seems to have no x20 conector thaf i could find....
And as most engine swap guides are for e36s I don't know if the ews is located behind the steering column or behind the glove box

Any input would be greatly appreciated,

Thanks

 

[andyglym]

to the forum from West Cumbria. Well out of my depth but @Lee is currently doing similar, a 2.8 into a 2.2 so may have some tips. Other #Zedshed team members;
@GazHyde, @pgunter, @Mnbrennan and @Nodzed may be able to shed some light. Best of luck.

 

[Sean d]

Hi and welcome, the EWS is behind the glove box

 

[Bodderrz]

Awesome thanks, I thought it was but I read earlier it's sometimes under the steering column haha

Now I just need to find this illusive x20 plug.... No idea where it could be hiding though

 

[Lee]

Hi bodders. Buy yourself an EWS delete ECU so you don’t have to touch any modules.

You will need the engine loom from the M52 also when you buy the ECU make sure it’s the EWS delete and for the M52. The rest of the connectors will fit. You might also need to change the prop shaft coupling as they’re slightly different.

 

[Bodderrz]

Hi bodders. Buy yourself an EWS delete ECU so you don’t have to touch any modules.

You will need the engine loom from the M52 also when you buy the ECU make sure it’s the EWS delete and for the M52. The rest of the connectors will fit. You might also need to change the prop shaft coupling as they’re slightly different.

Hey bro, I've got the loom ecu and keys from the m52 engine... But my mate has a ecu with ews delete we were going to use first just to get the engine started once it's in

I just can't find a x20 plug to plug the m52 in... this is the main problem I'm having... if I've got to cut stuff up I will but I don't really want to just confused as to why there is no x20 going to the m43 engine at all

Thanks

 

[Daspete]

Semi tempted to ditch my gutless M43 for at least an M44 but not sure how it'll get on with the MOT emmisions test on a stricter post 2001 test as BMW changed the engine's that year to comply with the new rules.
The M43 is spritely enough to start with but soon struggles.

 

[Sean d]

Semi tempted to ditch my gutless M43 for at least an M44 but not sure how it'll get on with the MOT emmisions test on a stricter post 2001 test as BMW changed the engine's that year to comply with the new rules.
The M43 is spritely enough to start with but soon struggles.

Only a thought but is it not possible to fit the twin cam head to an M43

 

[Sean d]

Semi tempted to ditch my gutless M43 for at least an M44 but not sure how it'll get on with the MOT emmisions test on a stricter post 2001 test as BMW changed the engine's that year to comply with the new rules.
The M43 is spritely enough to start with but soon struggles.

This is only £800 and you get the whole car, use the M44 engine and make money breaking it

 

[Daspete]

One would think so though I'm sure the pistons are different too making it probably a better idea to buy a complete M44.
Think i remember reading somewhere that it would be plug and play pretty much. Just that pesky emmisions test that's on my mind. I'd have to get a US exhaust manifold that has an EGR attachment on it too.

 

[Daspete]

I have an M44 already lined up just not sure wether to go ahead with it. £120 plus a great condition cat section thrown in. All the auxiliaries and injectors too

 

[Bodderrz]

So no ones got any ideas on these 2002 m43 engines?
Anyone got an idea if the x20 connectors got ditched for other connectors around the time of the m54 engines that I could try and splice up to an x20

 

[JAMZILLA321]

I cannot find x20 on m43 z3 1999 rhd either

 

[JAMZILLA321]

Anyone find location???