coolant temp sensor
ISC valve
A/F sensor
Pressure sensor


for a 93 wrx, i dont know of any places in or around romford that i can get these from..or any websites. also how easy/hard are these sensors to change and where are they located?? id apperciate any help guys as the car is very ill and i wanna get these problems sorted. am i right in saying most of the time if the fault codes are coming up for these its just a case of changing the sensor?? and would any of these cause the car to run very rich?

thanks

 

most of these items should be available from a subaru breakers, i think romford is reletively close to jap performance parts, they might be able to help, but you could try grade-a subaru or somewhere like that, they are only small items so postage wont cost the earth.

i had a coolant temp sensor on mine last year and it was as simple as just changing it for the new part and resetting the ecu. as for the others i cant comment because i have had no dealings with them.

coolant temp might cause rich running if it isnt telling the car the correct tempreture, this normally results in the cooling fans being on from cold. a/f sensor is possible but not sure about the pressure sensor or idle control valve.

hope this helps

 

chris try posting this in the essex group theirs plenty of members local to romford that should be able to help

They may try and temp you into a PINK T SHIRT but their a helpfull bunch

KIPS

 

cheers boys, ill give it a copy and paste into the essex section. really getting on me nerves cos the car just isnt nice to drive while its running abit rough

 

Use a scrappies. I've always had luck on ebay. Search for Impreza breaking or Impreza wheel nut and loads of breakers come up. Just send them all your wants list and you'll get good prices most of the time. I tend to find Subaru scrappies know the value of what they've got and won't let it go at a reasonable price, almost to the point where you're better off going to Subaru and buying the new part.

You're probably looking at £400-£500 worth of new parts though if you did go to Subaru. As a guide I was offered idle valves from different sources at up to £100 which is a rip-off for a second hand valve with no believeable history. If you can pick one up for £50 or less you have done OK. Lambda sensor is about £100 from Subaru and worth getting brand new.

Get the others from a scrappy.

 

will subaru supply the part tho?? everytime ive phoned them as soon as i mention its an import they seem to wanna put the phone down or take my number and get back to me which they never do.

 

stay away from main dealers as much as possible, as soon as they hear "import" they either dont want to know or they want to charge a premium for anything connected with the car.

try and stick to specialists, such as scoobyclinic, roger clark, tractive and take it from there.

 

cheers for the info guys

 

there is a fairly new breakers in Essex.. seem pretty good..

Essex Subaru Breakers

however I assume you have those error codes recorded in the ecu?
have you reset the ecu and checked all three re-occur.. unlikely to be all three faulty.. also worth cleaning and adding extra grounds to the engine and ecu.. as several error codes at once is often due to a ground problem.

I would go for coolant temp sensor first.. this would cause the car to run very rich as you mention.

Simon

 

cheers mate, yea the ecu has been reset and all codes keep coming up, when starting from cold i get the CEL alot but when the car is warm it never comes on. am i right in saying there are 2 temp sensors?? one for the ecu and one for gauge?? where is the ecu one located?? hoping to change it this week

 

yes there is two.. they are both in the ally pipe that crosses the top of the engine that the rad top hose connects to.. they are a bitch to get to.

if you stand at drivers side suspension turret and look under the inlet manifold by the turbo you would see them.

The ecu one is the one with the square plug, the gauge one a since spade connector.

Classic sign of coolant temp sensor is the rad fans on when engine is cold..
ecu is not sure if engine is hot or cold and so hedges it's bets.. you get full enrichment and rad fans.

Simon

 

yep thats what im getting, CEL comes on and fans cut in when cold. cheers for the info ill take a look tomorrow