J0NTHELEGEND

hi i have a wrx 1996 import and i have a prob wondering if any one can help when i start and drive the car for a short drive then leave it ten min and try starting it it will not start for about 20 min and i do not push the throttle down its fine on a long run but not short some times it starts but most of the time it dont for 20 min cheers

Flix

Usual culprit is the crank position sensor. Have you checked your ECU for fault codes?

J0NTHELEGEND

no i have not but if it is that do u no how much cheers

Flix

I had the same problem, it's quite common.
I got a used one from API, about £30, I think, new ones are about £130.
They are easy to change, under the alternator held on by one M6 bolt.

J0NTHELEGEND

thanks i have only had the car 2 weeks a newbie to scooby but i will try and see wot u mean

Redbelly

Hello,i would look at your alarm/immobilzer,i get this alot at work most alarms are aftermarket on imports and have a habit of cutting out the fuel pump.
Listen as you you turn the ign to on it should prime for a few seconds.
if the alarm is not the problem check the fuel pump could be on its way out.
if a sensor is down it should bring your engine light on.

Hope this helps mate

hux309

As said crank sensor failing possibly ecu temp sensor.

J0NTHELEGEND

the car has no alarm or imob yet

Redbelly

Still thinking fuel pump, let us know when you get it sorted

J0NTHELEGEND

will do cheers

projectsubaru

I would say definately crank/cam sensor very easy to do mine had the same problem as yours wouldnt start when hot. It was a pain when filling up with petrol and looking like a fool cranking over for ages with nothing happening. I gambled on a 2nd hand one and i was fortunate that it worked spot on and has done since

J0NTHELEGEND

i know it makes u look silly with a **** car how easy are they to replace and fit cheers

jaytc2003

iTrader: (1)

Highly unlikely that this is the problem, if the alarm was the fault then its highly unlikely that it would be okay after 20 mins.
Again same reason for the fuel pump, generally they either work or they dont although they can cause running problems by not supplying enough juice at higher rpm, but unless the car is highly modified this isnt the case (anyway it is starting and not running)
Sensor faults dont always bring the check engine light on.

Likely suspects are water temp sensor. Car is hot but the sensor is telling the ecu that the car is cold, therefore injecting more fuel (running a cold start/running map). Hence it doesnt start until a short period of time when the engine has cooled down a bit.

Cam/Crank sensors sometimes cause this fault as well. Sometimes you can clean them up and they work fine again, sometimes replacment is the only way of curing it.

jaytc2003

iTrader: (1)

slightly off topic I know, but how have you managed to insure it without an alarm/immob ?

Its generally difficult to get a decent price with one fitted!!

J0NTHELEGEND

i am with bell direct they gave me a good price £950 im 25 years old not bad price

J0NTHELEGEND

its def not the alarm or imob becasue the car dont have one yet can any one tell me where to locate that crank sensor please and is it just a matter of taking it of and replace or is there more to it

J0NTHELEGEND

any its not the fuel pump

jaytc2003

iTrader: (1)

good price for the insurance

Cam sensor is on the right hand side of the engine if looking at it from the front (passenger side), relatively easy to do this on, you can see if I remember correctly 2 thin wires going into the cam cover. This is where the Cam sensort is

Crank sensor I cant remember the exact location now (not got my scoob anymore) it is situated behind where the crank pulley is, cant remember though if this needs to be removed or not (think it does along with the cam covers)

Water temp sensor is a pain unless you have small hands!

J0NTHELEGEND

ok cheers also does any one know who does a good cat 1 on subaru for a good price

J0NTHELEGEND

its just done it again drove down the road for 5 min turn the car of and then left it for ten min then it does not start for about 20 min its getting on my ****

slayer84

I get a similar problem with my 96 WRX import. Once I unlock the car, I have about 30 seconds to turn over the ignition. If I do it after that, the car does nothing! So I have to lock the car while Im inside, unlock it again, then it turns over! Strange!

hux309

That does sound like the ecu temp sensor, usually if the crank sensor was playing up it wouldnt start at all.

But random cutting out and having to leave it 10-20 minutes usually points to water temp sensor.

No idea where it is though im presuming it's in the thermostat/water block if a scooby has such a thing somewhere.

sjwdavies

Ha ha ha ha, that's called the immobiliser!

ridell

I would start by checking the cam & crank position sensors first too, I have the same problem but im too tight to go buy a new sensor. When mine plays up us will unplug it and plug it back in and 9/10 time it will start up again.

The Cam position sensor is on the right side of the engine near the front top, it has a rust colour top & the crank position sensor is on the front of the engine just under the power steering pump, this also has a rust colour top.

help2003

iTrader: (1)

Would a faulty crank sensor cause the car to start then cut out after 10sec

danshaw

Mine was doing exactly the same, changed the cam sensor and bingo!!!!
Seems the sensors over time break down when hot!

P.S. didn't throw up any error codes either. Drove me round the bend for weeks!!!!!

Dan

josparky

hi mate, i just got a scoobie wrx 1996 N reg yesterday and already have a problem, when i put my foot down fully the car starts bogging out and loses power, today i hit 140 and then the car is now misfiring and the engine keeps cutting out, i also have blue/white smoke coming from the exhaust. stopped driving it now till i figure out what the problem is!

Thanks