1999 E36 M3 Evo Convertible, lots of issues - Page 3

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    #21
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    Nice bit of diagnostic work mate......
    If it aint broke, don't fix it!!!
     
     

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    #22
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    I wonder if it is the ECU it's self.... But, unless you have a mate who also has a M3 Evo to borrow the ECU from, the only other option is a buy a second hand one, but I dread to think how much that would cost.

    Would also prove rather costly if you find out your old one is fine !
     
     

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    #23
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    Tony Jackson's Car Details
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    Quote Originally Posted by adam.wilkinson View Post
    Nice bit of diagnostic work mate......
    Thanks, well it would be if I had actually fixed it.

    Quote Originally Posted by Ferret View Post
    I wonder if it is the ECU it's self.... But, unless you have a mate who also has a M3 Evo to borrow the ECU from, the only other option is a buy a second hand one, but I dread to think how much that would cost.
    There was someone selling the engine loom with ECU's on Ebay, but I don't know whether that included the DME.

    I just have this feeling that someone has used one of these high power boosters to start the car and it's fried some bits, the alarm being one of them.

    I'm thinking about removing each ECU in turn and testing the port. Hopefully that will prove the point.
    Quote Originally Posted by Ferret View Post
    Would also prove rather costly if you find out your old one is fine !
    I guess I could always sell it again.

    Anyway, it can wait until the winter now, new toy to play with....







    Well it does have BMW after market (I think) wheels on it!

    Thanks for all your help and support so far, it's been great!
     
     

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    #24
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    Quote Originally Posted by Tony Jackson View Post
    There was someone selling the engine loom with ECU's on Ebay, but I don't know whether that included the DME.
    DME's and ECU's are the same thing - It's the EWS module and transponder you will need to make sure you get.

    What is that Vauxhal ?
     
     

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    #25
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    looks like an opal manta?
     
     

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    #26
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    Quote Originally Posted by payno View Post
    looks like an opal manta?

    No it does not


    It looks like a Monza GSE.


    Got yourself a Carlton 24V lined up for it yet?







    No warranty of any kind implied or given and no liability for any loss, damage or injury, no matter how incurred accepted.

    Free Gas Kit* now fitted to free 328*

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    #27
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    Forgot to say all those crimps in your wiring loom photos look standard to me.


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    #28
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    Quote Originally Posted by Tony Jackson View Post
    The down side is, the diagnostic port is still dead but I'm starting to wonder if it is actually one of the ECU's pulling it down.
    I was going to say that the open circuit / near open circuit might not be as cut and dried because you get a voltage drop with current flow. If in normal use a voltage is read on the line with a high resistance tool there would be very little current flow and hence very little voltage drop.

    By spiking the wire oyu should be able to find out if the resistance is in the connector or the wire and which section.

    Quote Originally Posted by Tony Jackson View Post
    On the upside, I lost the locking wheel nut tool so I took it to the local main dealer who went to all the trouble of testing to see which number it was and then gave me a replacement for nothing. Now that's what I call service as although it's peanuts money to them, I'd never stepped foot in a BMW garage before so it sets a good precedent!
    Lucky so and so, they charged me about £8 but they did have to order it in specially.


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    #29
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    Quote Originally Posted by E36Coupe328 View Post
    I was going to say that the open circuit / near open circuit might not be as cut and dried because you get a voltage drop with current flow. If in normal use a voltage is read on the line with a high resistance tool there would be very little current flow and hence very little voltage drop.
    That's very true, and it's something I will test for once it's off the road again.
    Quote Originally Posted by E36Coupe328 View Post
    Lucky so and so, they charged me about £8 but they did have to order it in specially.
    I think they had a couple kicking around in their workshop so I struck lucky. Still good of them though.

    Quote Originally Posted by E36Coupe328 View Post
    It looks like a Monza GSE.
    Indeed it is.
    Quote Originally Posted by E36Coupe328 View Post
    Got yourself a Carlton 24V lined up for it yet?
    Well I already have one 24v manual Monza GSE, bit I have all the bits to build a twin turbo 24v, I just need to decide whether to stick with two or make one good Monza from them.

    Quote Originally Posted by E36Coupe328 View Post
    Forgot to say all those crimps in your wiring loom photos look standard to me.
    Ah, thanks for that, I did wonder, but they looked professionally done so I suspected as much.
     
     

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    #30
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    Well it's been a long time since I updated this thread, and it's been a journey of ups and downs.

    Since buying this M3 I've replaced the alarm ECU, ABS ECU and the engine DME obviously along with the EWS II ECU and associated transponder chip, as well as a new hydraulic clutch hose, two Lambda's, VANOS filter, fixed the leaking roof and found the INPA diagnostic software that opens a whole world of diagnostics which makes life sooo much easier.

    I've also replaced the missing tool kit, fitted new Mintex front brake pads, front passenger ABS sensor, and replacement battery to make it the car it is now. I almost forgot the replacement coil pack as well as the thump I had to apply to the nearside reversing sensor to wake up the PDC system and the drivers sun visor to replace the smashed mirror.

    Anyway, as it hadn't been used much over the summer we decided to sell it and received a reasonable offer that we accepted. Then some 40 minutes later the buyer rang me to say he had HPI'd the car and found it was a cat D write off in 2005. So after paying over the odds for what started out as a not very good car and spending a lot of money and time restoring it, I now find it's not the car I thought it was. That'll teach me a lesson!

    On the up side, the guy that test drove it said it went well and after a thorough examination couldn't find any accident damage at all, and is apparently an ex racing driver that now works as an engineer for Cosworth, so if he couldn't find anything wrong then it can't be that bad. So we've decided to keep it and carry on improving it. Next on the list, replacement hard top, as being an individual model, it was sold new with one and still had it in 2006! This I know as I was lucky enough for someone to contact me through Ebay that new the car back then. Things are starting to look up again!
     
     

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