Krister

Hi,

I just bought a -97 STi Type-R. I'm guessing its a V3. I'm new to Scoobies, last winter I had an Evo 5, but I wanted to try a Scooby for this winter and as this one came along, I bought it. It's going to be a slight project as it seems this car been neglected a little bit and it is in need of some TLC.

The car is originally from the UK and it's been imported here to Finland. If someone recognizes the car or knows any history behind it, I'm more than interested hearing it. The company that imported the car hadnt a slight clue of the car, they knew nothing about it, so I would also need some help with it.

The mods I've noticed:

Gems ECU with ALS
Full 3" exhaust
Induction kit
Autobahn 88 FMIC
Suspension
V5 front bumper and rear wing

I bought the car as a non runner, it will idle but very rich and wont rev. My friend said that it's most likely the MAF. I have a Gems specialist coming over next week so that we would remove the MAF and put a MAP-sensor instead of it. Anybody done this before?

Here's some pics of the car:



And then some questions I have:

What are these electronical gadgets as there are some hoses missing from them and what do they do?

1:

2:

3:



Is this the stock Turbo?


Is this the stock exhaust manifold?


Quick shifter or stock?


What exhaust is this?



Cheers for any help!!

Krister

Anybody?

wrathchild_78

iTrader: (3)

the STI version will be decoded from the Applied Model Code seen on the car. That is the only way you will be sure about your car's version.

see here for help:
http://www.catherineandken.co.uk/sti/wrx.html

The exhaust manifold doesn't look stock although I can't be 100% sure.
The rear silencer is impossible for me to reckon from a single pic. Search the sides for any company logo (if any).

As for the boost controller, I would recommend you buy a second hand avcr which is simply amazing and discard anything else you have atm.

For the rest, I can't help you any further.

Krister

Thanks for the response. I'm pretty sure it's a v4 as I compare interior pics to a v3.

The gauge cluster has been changed at some point and it doesnt have the DCCD display. Does anybody know where I can source a v4 gauge cluster with the DCCD display? Does any other scooby other than the Type R have the same gauges?

What colour injectors should a v4 Sti have? Mine are gray I think.

TonyBurns

iTrader: (3)

The STI RA will have the same cluster as the R, if you have the uprated interior and the MOMO (none flashy badged) steering wheel, then the chances are its a version 4.

Tony

joz8968

iTrader: (13)

Post up pics of interior, engine bay and VIN plate, and that should be enough to piece together its true identity...

joz8968

iTrader: (13)

You have what looks like GT Spec style tubular headers (could be cheapo; could be the real thing).

Back box is after market.

Are there any markings/writing on it either item?

StudentScooby

are you sure its got a maf with gems? i didnt think that was possible?

Splitpin

As Student has already said, if this car has a GEMS ECU it will be running speed-density and won't be using the MAF sensor at all. However, judging by some of your pics there may be a solution elsewhere:

That is the MAP (aka pressure) sensor. The fact that it isn't connected to its pressure source suggests either that you have found a likely solution (or at least contributor to) your problem, or that the GEMS is set up to use its own independent sensor.

That is the pressure source change solenoid. On a standard setup it switches the pressure sensor between measuring manifold absolute or atmospheric.

I don't know whether your GEMS ECU will be using the standard MAP sensor and PSCS or whether it runs its own. Under normal circumstances, however, there should be a hose connecting that output on the PSCS to the pressure sensor. If I were you I would try adding one and seeing whether it makes any difference to your symptoms. I would also look elsewhere around the inlet manifold and associated pipework to see if there's a separate MAP sensor anywhere. If not, you will certainly need to replace that pipe.

That is the boost control solenoid, and it's a two port one. If your car is a version 4 STi, it should have a three port. Thus either you have a version 3, or it has been changed. You also have that manual boost controller there. Without seeing how it's connected, it's impossible for us to know whether that's acting in conjunction with the solenoid, or instead of it. MBC shouldn't be necessary with a GEMS so it's surprising to see it - assuming it's actually connected and isn't merely a leftover from a time when the car was running the OE ECU.

Looks like, but can't tell from that pic. Need to be able to read the stamped engraving on the ID plate.

Krister

What are my chances of finding a used one and what do they usuall cost? Regular STi's dont have the DCCD display?


I searched the forums and looks like the GT Spec headers look a little different:
https://www.scoobynet.com/private-fo...r-headers.html

Mine has some extra support bars that the real GT Spec doesnt seem to have.

Havent found any markings yet.

Here's one interior shot. I can post more pics later if you wish.



hmm, that's interesting.. I tried to plug in the MAP-sensor hose to the PSCS and the car would stall immediately. I still had the MAF plugged in though. Maybe I have a part of the solution here.

So the GEMS is only ment to be used MAP-based, not MAF?

EDIT: I went and checked the MAP sensor and it was Denso sensor part no 220-12AA090 079800-4110. Looks like it's a 3 bar map sensor, correct? (1 bar vacuum, 2 bar boost?)


Thanks for these, finally I'm getting somewhere and getting real info


I checked the hoses and it looks like to be using the manual boost controller. It's connected between the actuator and compressor housing boost source.

Here's a pic of the engine bay. I had the MAF disconneted at the time I took the pic.

joz8968

iTrader: (13)

MY98 (Sep 97 - Aug 98) WRX Type R STi Version 4 -- it has the coilpack in centre of IM and the facelift interior.

The only thing I'm concerned about is that it doesn't have the STi oval emblems on the front wings below the swage line??? (Probably just been removed by a previous owner for aesthetic reasons...)

Post a pic of the VIN plate's info on the passenger side front suspension turret...