No connection with Prodrive ecu?
#1
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No connection with Prodrive ecu?
Hi :-)
I bought this old lady some time ago when I realized that I was going to be a father
In need for a four door saloon and with a mind that is 20 years behind my birth certificate I could only find one car that I wanted
I found this one nearby (I live in Denmark)
It's a 1998 2.0 gt 4wd (555 Special Edition) imported from Netherlands, it's bone stock. I found a Prodrive ecu (SP)on eBay that was supposed to fit this car equipped with a 9s.
I fitted it, but the engine of course only ran for a few seconds, just as expected, so I went to a Subaru dealer to get it reprogrammed for the key. He couldn't get in contact with the Ecu at all, but it was no problem with the stock 9s...
We concluded that it was dead and I got an other one from the Ebay seller, but have just been by the dealer and it is the same story?! Seller has told that they both come from a running vehicle...
The fuel pump primes and the car starts, but only to die after 4-5 seconds or so, the immobilizer symbol isn't on.
Any idea whats wrong?
1998 impreza
Stock ecu
Prodrive ecu 1
Prodrive ecu 2
I bought this old lady some time ago when I realized that I was going to be a father
In need for a four door saloon and with a mind that is 20 years behind my birth certificate I could only find one car that I wanted
I found this one nearby (I live in Denmark)
It's a 1998 2.0 gt 4wd (555 Special Edition) imported from Netherlands, it's bone stock. I found a Prodrive ecu (SP)on eBay that was supposed to fit this car equipped with a 9s.
I fitted it, but the engine of course only ran for a few seconds, just as expected, so I went to a Subaru dealer to get it reprogrammed for the key. He couldn't get in contact with the Ecu at all, but it was no problem with the stock 9s...
We concluded that it was dead and I got an other one from the Ebay seller, but have just been by the dealer and it is the same story?! Seller has told that they both come from a running vehicle...
The fuel pump primes and the car starts, but only to die after 4-5 seconds or so, the immobilizer symbol isn't on.
Any idea whats wrong?
1998 impreza
Stock ecu
Prodrive ecu 1
Prodrive ecu 2
#3
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It might be? I bought this to a 1998, and it has the 3 plug yellow connector?
Its my first Subaru, so my only knowledge comes from Google in general and particularly this great site :-)
Its my first Subaru, so my only knowledge comes from Google in general and particularly this great site :-)
#5
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i wonder if your 9S ecu is the one with the immobiliser chip in it vs our UK ecu that just wants a ground signal from the immobiliser to confirm the correct key was used? In that case you'll have difficulty getting it to work without stripping your immobiliser out i think.
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The dealer hooked it up to his computer but couldn't get in contact with the Ecu, no problem with the stock one?
The VIN number differs from the UK ones, wonder if some pins needs to be swapped? Haven't tried reading out diagnosis.
The VIN number differs from the UK ones, wonder if some pins needs to be swapped? Haven't tried reading out diagnosis.
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#8
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However when you check the ECU it lists correctly but in red.
You will also notice that the engine is listed as EJ20G whereas all UK MY98 cars are EJ205, so yes it probably is different ECU wiring
#10
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i think with the UK cars the key is paired with the immobiliser unit and it just sends a ground to the ECU telling it the key is OK. With your one it sounds more similar to the UK foresters where the ECU also has a chip that must match the immobiliser before a start is allowed.
You might get away with grounding the immobiliser pin on the ECU - though you could be left with a flashing ignition key symbol on the dash.
You might get away with grounding the immobiliser pin on the ECU - though you could be left with a flashing ignition key symbol on the dash.
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But if it was the immobilizer would the fuel pump prime when ignition is switched on? And shouldn't the ignition key/immobilizer symbol flash then?
Does anyone have a wiring diagram for the Ecu?
Does anyone have a wiring diagram for the Ecu?
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Do you know if there should be any risk by swapping the wires?
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And you got it coded without any problems?
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As I read the diagram it's # 8 and 10 for the crank (marked 1* and 2*) but I must admit that I am an electrician and I find automobile electronics pretty confusing :-)
I also tried swapping #7 and 17 for the fuel pump, but then the pump doesn't prime at all...
I also tried swapping #7 and 17 for the fuel pump, but then the pump doesn't prime at all...
#25
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As I understand it, the Sigma alarm was only fitted to UK cars for 99-00 classics (and later non-classics too) and was something that Subaru UK did, rather than something that happened in Japan. The reason they did it was that the OEM immobiliser wasn't good enough to qualify for Thatcham category status (for UK insurance) as it allowed the car to start momentarily before cutting out.
97-98 UK cars don't have the Sigma alarm (well, mine doesn't anyway), or any kind of fob/remote key unless they've had an aftermarket alarm/immobiliser added. The immobiliser is a separate 'black box' somewhere under the dash and the key has a little chip in it to communicate with it via a RFID style signal and there is a antenna around the key lock which goes to the immobiliser. The immobiliser then communicates with the ECU to send some kind of "OK" signal. If the ECU doesn't receive this, then it shuts off. As far as I'm aware, on a 97-98 the ECU, immobiliser and key chip all need to be coded in order for the engine to not shut off shortly after being started.
The comment that Bludgod has made regarding grounding the immobiliser pin at the ECU sounds like it might be intended for the behavior of a 99-00 setup than the 97-98 setup which you have.
97-98 UK cars don't have the Sigma alarm (well, mine doesn't anyway), or any kind of fob/remote key unless they've had an aftermarket alarm/immobiliser added. The immobiliser is a separate 'black box' somewhere under the dash and the key has a little chip in it to communicate with it via a RFID style signal and there is a antenna around the key lock which goes to the immobiliser. The immobiliser then communicates with the ECU to send some kind of "OK" signal. If the ECU doesn't receive this, then it shuts off. As far as I'm aware, on a 97-98 the ECU, immobiliser and key chip all need to be coded in order for the engine to not shut off shortly after being started.
The comment that Bludgod has made regarding grounding the immobiliser pin at the ECU sounds like it might be intended for the behavior of a 99-00 setup than the 97-98 setup which you have.
Last edited by ben.harris; 30 March 2017 at 10:02 AM.
#27
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Car has a listing in the database for Key transponder chip, Immobiliser Antenna assembly and Immobiliser ECU.
however, am not sure of the significance of the two items being in red ( same as the ECU (Unit assembly - EGI Control) in previous post).
however, am not sure of the significance of the two items being in red ( same as the ECU (Unit assembly - EGI Control) in previous post).
#28
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Are these any help
All for European market MY97 Turbo
Engine wiring
These look the same as the other thread
Immobiliser
All for European market MY97 Turbo
Engine wiring
These look the same as the other thread
Immobiliser