Thank you AndyP for sending me 3 x chips for me to try :cool3:

 

On trying them all today I am now struggling with the chip that was known working at the start of the day :mad2:

 

Is this wire not helping? It was frayed badly and any exposed wire as now fallen off, does it need ring spading up and connecting properly under the casing cover screw bolt?

 

Yes i would say so Andy

The wire was heading that way to be twisted round the screw but what a poor way of connecting up - is everybody's like this :confused1:

 

I will find out tomorrow if this connected makes any difference to how the car performs as today it was awful, running like a pig, no power, boost, etc :mad2:

I don't recollect seeing a connection like that before. Can you get a better picture ?

A better picture Andy?

 

It's not bad is it, just a big blob of solder on the underside corner opposite the socket with this weedy wire coming out of it :confused1:

a Wider Full shot of the ECU board

I could brave the rain and get a spare ECU from the garage, but I don't think mine have a wire there.

 

What is the symptom, does the electric fan start as soon as you turn the ignition on ? If so then I suspect you may have damaged the chip by static.

Just been out and looked at it and there should be screw where the solder is, it looks like the head as fallen off it and the thread as remained in the hole, someone as then bridged the earth over to the outer casing hole :confused1:

 

Is this 'bridge wire' therefore necessary? If you look carefully the top corner bolts are part of the pcb, the others are not.

 

thats strange ... looks like some one has done that ... as its the screw hole

its going to be a earth point and i would say its doing to the daughter board on the other side

I could brave the rain and get a spare ECU from the garage, but I don't think mine have a wire there.

 

What is the symptom, does the electric fan start as soon as you turn the ignition on ? If so then I suspect you may have damaged the chip by static.

 

My original chip, not one of yours Andy should be working so at this minute I conclude that all my findings with your chips are not reliable, I will update in due course.

 

Tomorrow I shall remove the blob of solder and try and get the broken bolt thread out of it's hole and mend this properly before I can move on.

 

Just thinking ahead, if need be have you a turbo manual socketed ecu you could send me please :cool3:

I probably have a spare ECU that will work, I know I have a number of NA's, but only for use with a boost controller on a TT obviously. I may have either an auto or man TT, would need to check the part numbers.

 

Incidently, I have a heap of broken ones if anyone reckons they know how to mend them !

Right Andy thanks for your post but I don't need another ECU.

 

I could not extract the broken bolt thread so I re soldered and put a thicker wire on and attached the ring spade end to the ECU body, so very happy there with a solid ground.

 

Put my working original chip in first this afternoon and it worked just as before my tinkering.

 

For your information AndyP sent me 3 chips to try, all 555's and my spec list is in my garage.

 

I first put in the Devlin 555, seemed to work fine until I asked a bit more from it and would not boost beyond 8psi. This chip could well have developed a fault from when I tried yesterday.

 

Next, the one marked Z32m 555, yesterday with the dodgy earth the engine would not fire up, today it did but the idle was hunting up and down, didn't feel happy with trying this chip out further. At this stage I was thinking I am going to end up where I started in sticking with my original.

 

Finally I fit the one marked 555 auto? (I have a manual!!), car was happy as soon as it started up, idled perfectly so went off to give it some legs, the odd bit of giving it some beans I thought mmmmmmm. As soon as I had some open safe road down the pedal went, the car took off and carried on giving and then the turbos came in........suuuupppeeeeeeeerbbb......the car took off again, I shouted out loud FFS as I was rocked back in my seat :cool3:

 

Totally adore this chip and finally my summers upgrades done by Lee Dent are unleashed as the performance is truly amazing, it just gives and gives and gives.

 

I now have a proper car :clap: :clap:

 

Please AndyP update me on what this chip is and then pm me your paypal address for payment bud as this chip I am a keeping as this pic proves...all bolted in :lol:

 

Andy - ill have a crack at fixing the ECUs if there is no-one else around offering this! Do we think this would be of interest ( or are there so many scrapped cars around now that actually is easy to just get another one?). Send me a pm mate if your serious about getting someone to look at them.

UPDATE : I have now paid AndyP for the chip I am keeping out of the three 555's he kindly sent, I think it was very good practice for him to do this and for me to then report back to him with no mention of cost at all, keeping ultimately one which turned out to be compatible for my specific modified Z, of course the 'rejected' two are being returned.

 

The chip I am keeping was tested this morning from cold and it was again without fault :cool3:

 

Extremely happy with him, his product and swift service and comms, cannot praise highly enough.

 

Have some rep bud and thanks again :wink:

Thanks Andy, very pleased to know that all seems to be working well.