Installed new ECU - now car won't start

[silver993tt]

Just installed a new ECU from Porsche but the car won't start. Installed the same new ECU into 2 other 993 turbos and they started fine. Reinstalled old ECU into my car and it starts fine.

The only difference between the cars is that mine has the PA1000 alarm/immobiliser installed. Would the key fobs now need reprogramming using the red master fob?

..or is it nothing to do with the PA1000?

help appreciated

[nervous]

keys need to be re-prog'd i think, certainly was the case on my scooby.

[silver993tt]

nervous said:

keys need to be re-prog'd i think, certainly was the case on my scooby.

is that simply following the PA1000 instruction pamphlet?

[sportsandclassic]

Pa1000 is seperat unit nothing to do with ecu...

Why have you changed ecu ?

did it run before ecu change?

mike

sportsandclassic

[silver993tt]

sportsandclassic said:

Pa1000 is seperat unit nothing to do with ecu...

Why have you changed ecu ?

did it run before ecu change?

mike

sportsandclassic

installed the 450hp ecu as part of the Porsche kit. Yes runs if I put the old ECU back in. However, the new ECU runs in other cars.

Edited by silver993tt on Thursday 9th November 19:11

[nervous]

silver993tt said:

nervous said:

keys need to be re-prog'd i think, certainly was the case on my scooby.

is that simply following the PA1000 instruction pamphlet?

erm, no. that was following the instructions on a different make of car. sorry. i just assumed that the theory would be similar, since the key probly needs to recognise the ecu.

Edited by nervous on Thursday 9th November 19:13

[silver993tt]

nervous said:

silver993tt said:

nervous said:

keys need to be re-prog'd i think, certainly was the case on my scooby.

is that simply following the PA1000 instruction pamphlet?

erm, no. that was following the instructions on a different make of car. sorry. i just assumed that the theory would be similar, since the key probly needs to recognise the ecu.

Edited by nervous on Thursday 9th November 19:13

Well, I think it's in that area because the only component that's different among 3 similar cars is the PA1000.

However, would like a bit more qualification before I mess around with reprogarmming the keys and end up with the old ECU not working either!

[nervous]

take it to a dealer chum, they just bung them on a reader and presto chango, its working.

[silver993tt]

nervous said:

take it to a dealer chum, they just bung them on a reader and presto chango, its working.

It's already at a dealer (independent) in Germany. As I said, they tried the new ECU in 2 other turbos and it worked instantly.

[nervous]

oh, it. god, im more fed up than i thought.

sorry, the people you need to talk to are wwww.abacus-resetters.co.uk

[nervous]

silver993tt said:

nervous said:

take it to a dealer chum, they just bung them on a reader and presto chango, its working.

It's already at a dealer (independent) in Germany. As I said, they tried the new ECU in 2 other turbos and it worked instantly.

sorry, got no idea then. was only trying to help chum.

[sportsandclassic]

so youre old ecu reuns fine on the car....and the new one doesent start ?

but on other cars its fine...

how strange..so if immobiliser fault you would of thought that the car would not run on either ecu...

mike

[silver993tt]

sportsandclassic said:

so youre old ecu reuns fine on the car....and the new one doesent start ?

but on other cars its fine...

how strange..so if immobiliser fault you would of thought that the car would not run on either ecu...

mike

unless the ECU recognises something with the PA1000?

[sportsandclassic]

The PA1000 is a seperate standalone alarm/immobiliser unit had 1 installed in my fiat punto many years ago no link up to engine ecu....

mike

[silver993tt]

sportsandclassic said:

The PA1000 is a seperate standalone alarm/immobiliser unit had 1 installed in my fiat punto many years ago no link up to engine ecu....

mike

ok, thanks for the info. I mentioned it because it seems to be the only 'electronic' difference between the cars.

[aceparts_com]

Let us know what you think of it. Had only I known when you collected the wheels I have (somewhere) an RS tuning 450 ECU

[silver993tt]

aceparts_com said:

Let us know what you think of it. Had only I known when you collected the wheels I have (somewhere) an RS tuning 450 ECU

Cheers Alan. The ECU I have came with the kit, so it didn't cost me anything extra.

I'll post a pic of my car when it's back in the UK with your (very different looking) wheels

Edited by silver993tt on Friday 10th November 07:19

[silver993tt]

Anyone know if the UK cars (993's at least) have the Porsche Driveblock system as standard? I was told the cars in Europe have this but not sure about the UK (as usual). I know the new ECU that I have is for cars fitted with Driveblock.

Edited by silver993tt on Friday 10th November 07:40

[MOD500]

I had this problem when I had mine fettled. My old ecu was knackered, so RS put the new map on a brand spanking ecu. The car would turn over but not fire up, the ecu was sent back to RS who removed the drive block, and no further probs.

HTH


Martyn.

[silver993tt]

MOD500 said:

I had this problem when I had mine fettled. My old ecu was knackered, so RS put the new map on a brand spanking ecu. The car would turn over but not fire up, the ecu was sent back to RS who removed the drive block, and no further probs.

HTH


Martyn.

Sounds like it might be the same problem. My New ECU has been confirmed to have Drive block, so are you saying this is bad news for a UK car?