Hello everyone, i am new on here and just bought my first scooby a 1993 wrx sti, and i have now got a cold start problem, it struggles badly in the morning even if the weather is cold or warm but once shes started and warms up shes fine, i have replaced the idle control valve, and cleaned all the earth points i could find, but the problem is still there can anyone help me

 

Coolant temp sensor perhaps located in the block by cylinder number 3 (nearest the turbo) an orangey/brown sensor.

 

yes coolant temp sensor or coolant temp sensor wiring

 

There are no 1993 sti`s. First ones arrived in 1994 as limited editions.

 

What about the ones modified from WRXs at the end of 93 (admittedly not a 'real STI' as we know it) or are they counted as 94 STIs?

 

All the version 1 sti`s have a limited edition plaque numbered 1 of 100 or 1 of 200 and manufacture date. Never seen one with a 93 on it. Only 94. They are classed as a MY94 car. Unless someone out there has one and can prove me wrong.

 

hi there every 1 gona check out this water temp sensor and get back to you all and let you know how i get on .... and thanks to black v5 as i know nuffin about scoobs will check serial numbers with the chassis number as its a red top engine and dont have a plague of any kind to reconnise it .....

 

This may help

Based on the APPLIED MODEL number on you VIN plate you should be able to find out, your exact model type.

The 7 digit "applied model" code found on the vehicle identification plate inside the engine bay is decoded in the following way.
1.Series code G=Impreza S=Forester B=Legacy etc.
2.Body type F=Wagon C=Sedan
3.Engine type 8=2.0L Turbo
4.Year code A=MY93 B=MY94 C=MY95&96 D=MY97 (facelift) E=MY98 F=MY99 G=MY00
5.Number of doors 2=2 door coupe 4=4 door saloon 5=5 door wagon/hatch
6.Model type 8=WRX 7=RA type E=Sti D=Sti Type R & RA
7.Transmission D=5 Speed Manual AWD P=4 Speed Automatic AWD

 

If it has a red manifold then its either been painted or has had a sti one from a later car fitted. As version 1 sti`s never had the red manifold.

 

the exact model thats says on the vin plate is it a my93 2.0ltr turbo,5 door sedan,and its a wrx thanks for the info myblackwrx very helpfull.

 

The applied model code wont help on a version 1 as the wrx and the sti have the same code. The first sti`s were modified wrx`s. But you should have sti seats, steering wheel, front strut brace and an alloy intercooler, not a black one.

 

Might be helpfull.

Eta Tauri Site Impreza Reference - WRX Frenzy

 

BLACK V5 is correct in everything he says re. the STi Version (I)