tay05

Was driving along a twisty B road today having some fun, when the car started limiting itself to 4.5 thousand revs and the check engine light came on. The car is running fine appart from limiting itself, was running a little low on fuel at the time, so i've filled it up now. Was hoping after restarting the engine this would clear the fault but it hasn't. Do i need to reset the ECU? (its a standard MY93 WRX ECU) and if so how do I do this, disconnect the battery for a certain length of time? What could this fault be? Low fuel pressure? There are no leaks of any kind.
Speedo stopped workin as well yesterday, not my week! Stripped the dash and the cables not spinning, its not snapped either as theres resistance when u try and turn it, so it must be something the gear box end, any ideas on either problem anyone???

Gazz300

Take it easy until you find out for sure. Check light may be from just giving it a hammering and sensors playing up. Last car I had where this happened the speedo failing was a sure sight of the diff going as this is where the feed is taken from. It was not a Scoob though. Good luck.

pippyrips

when the car detects faults it automatic\lly goes in to safe mode and dops revs etc.

If the fault hasn't cleared it means the ecu is still detecting it - you could try disconnecting the battery but if it still comes back get it looked and don't give it the beans until all is sorted.

I think you can find out the fault code on classics by plugging in 2 connectors under the steering coloum which will then in turn casue a sequence of lights on the dash board. The total number of flashes relates to a specific problem/area. If you search on here will will find much better discriptions of what you need to do...


My engine light came on on my STI recently - cause was a loose connection in the kmh - to mph converter

tay05

Posted this Q in scoobynet general discussion, got this reply

"Its your speedo cable gone mate Probably at the gearbox if its fine the other end.When the ecu cant detect a signal from the speedo it sticks you in limp home mode. I think it was to stop those crazy jap barstewards disconnecting the speedo to get around the 112mph limit in japan"

Anyone shed any light on this? Agree/disagree?

pippyrips

i've got 04 jdm sti and like i say when i lost my speedo the check engine light came on. 30 seconds later the speedo came back and th light went off stright away. If all your clocks are working again and the light is still on then it could be anything.

Get it checked out

tay05

Cheers Pippyrips, hopefully its just the speedo cable, fingers crossed

tay05

bttt All opinions welcome

scoobypeterpump

hey tay05
sorry to hear your having trouble hope you sort it out soon.
peter

tay05

Cheers Pete, luckily the cars running fine below 4.5 thousand rpm, so I can still use it. Hopefully when i replace the speedo cable (if thats whats knackered) the CEL will go off and the car will be back to normal. Until then Taylor.

pippyrips

is you speedo working at the mo?

tay05

Not yet, got a mate coming to have a look at it in about half an hour.

tay05

Sussed the speedo problem, the bottom part of the speedo cable has snapped. Does anyone know if this is a dealer only part or can i get it from a motor factor?

pippyrips

you may have found the CEL problem - although my car didn't go into safe mode when the speedo was playing up.. - hope it all works out

tay05

Yeah thats what i'm hoping, just having a nightmare trying to get the speedo cable! Hard to believe isn't it!

pippyrips

might be worth giving api a call

APIDavid

iTrader: (4)

The speedo problem will usually bring up a CEL. Fix the speedo and I'd be fairly certain the CEL will go away.

David APi Impreza / APi Engines
www.apiengines.com

tay05

Cheers David, I'm hoping that is the case. Just having a nightmare getting the speedo cable as the car's a '93 JDM WRX. Surely I would have thought all cable driven speedo's on scoob's were the same.

tay05

Big thanks to Keith Price Subaru They've ordered the part for me and it'll be here Thursday hopefully and all for only £40 inc vat

So CVC if ur watching

wide

Good result

flopsy

taylor what was the problem with cvc.
chris.

tay05

Basically as soon as i said it was an import they didn't want to know. They just said they couldn't get the part. Why not??!! Wayne at Keith Price had no trouble, just said leave ur name and tel number with me and I'll contact Subaru Japan and see if i can get a part number, he wasn't funny about it at all. He then rung me back this morning (following day) and said he can order it and the price was £36 + vat. No hassle at all and i was treated as a valued customer. If I ever buy a brand new scoob, i know where my money will be going. Not to CVC thats for sure!

tay05

Just to close this subject, fitted a replacement lower speedo cable today and the speedo is working perfect again. The CEL has gone out also..praise to subaru for fitting self deleting ECU's
Thanks to everybody for your help and advice on this subject, cheers guys.
Taylor

DannyBoy007

iTrader: (7)

Result

:Mike:

Think I may have this issue on my '98 Sport.
This afternoon the CEL came on for a few seconds (then turned off again) but now the speedo is all over the place, and under-reading when it reads at all.
Had a look at the back of the dials and it looks like it's an electrical speedo? (as opposed to the old spinny-wire type I've had on previous cars).
Are you guys talking about the same thing? (ie an electrical wire failing, as opposed to a moving cable breaking?)

Whereabouts is the sender on the gearbox?

tay05

My problem was a broken lower mechanical speedo cable not an electronic one as i have the older type fitted on mine. The cable screwed in on the top left of the gearbox (looking into the engine bay). Hope this helps?