The car has been fine up to yesterday; when starting from cold the engine turns over for 5-10 seconds then starts and is very lumpy, some times it does don start and i have to re prime again via switching off and attempt a restart.

it used to start on the button and the cold start kicked in and reved at 1500rpm then dropped as the engine warmed up.

Is there a cold start valv on 03 bug STI or could this be another issue?

Once the car is warm starts first time and runs fine at speed and on boost, could this ve plugs/cold start/fuel-fuel filter etc??

Thanks.

 

Mine is currently doing that and I was told it is the coolant temp sensor. It's getting changed now so will see if it solves it. Not expensive to do either

 

Interested in this as mine has been doing the same thing every now and then. Can you post back here if it solves the issue.

 

Can anyone post photo and or advise of its location to allow the unit to be replaced.
Cheers.

 

Can its location and if possible location to allow me to replace mine.
Cheers

 

quite easy to get at on yours directly behind the alternator in the water crossover pipe

 

Do you use yours for short journeys. As most know the Alternator in the Scoobs is a smart alternator one. If you run around short journeys the battery may not be charging. Leave the heater on low or leave sie lights on when going out for a drive. This will enable the Alternator to charge the battery. Its probably only really more noticable now due to the cold weather and the battery having to work a bit hard to crank the engine.

 

Been told this is the dash temp gauge sensor? not the ECU temp sensor, can this be confirmed.

Cheers

 

No long trips every day over 100 miles, the battery is OK and no issue with charging.

 

the one behind the alternator with the single spade wire not the one with connector plug

 

I get mine tomorrow so will let you know if its fixed

 

According to the schematics this is for the dash gauge not the ECU collant sensor, this one has plug with two wires.

 

they are nxt door to each other the grey one E8 is a triangle 3 pin which the in car engine coolant temp gauge uses

 

Just attempted to start the car which has been parked up since 9am this morning and same thing.
The car turns over for for quite a few seconds then bup bup bup then on 1500 revs as normal, switch of and restarts fine no issues (still cold) this must be another issue?
Any advice.
Cheers

 

Fuel?

 

Do you mean fuel type? or air or fuel priming issue?
The pump primes and when started then switched off no issues?
Weird one???

 

Update:

Ran a tank of shell VP and seems to be better going to replace the fuel filter and plugs and see from there.

May have been some s...e fuel?