[GSIdude]

occasionally, it cranks for a longer time than usual before actually starting (fire up).

it never does it when parked overnight. only happens when parked for about 1 - 3 hours.

it always starts eventually, but cranks longer than normal.

fuel relay and pump was replaced 9-10 mths ago.

 

[Topbuzz]

> it never does it when parked overnight. only happens when
> parked for about 1 - 3 hours.

Could this be temperture related, ie when its warm/hot, no problems starting?

If so its could be the CTS (coolant temp sensor), its like a electronic choke. I bought a new one for my C20LET for £7 at www.autovaux.co.uk orignal BOSCH part.

See my guide at
http://www.topbuzz.co.uk/info/cts/cts.htm

 

[GSIdude]

the best part is, the problem started shortly after a coolant temp sensor change!! lmao

i'm thinking weak FPR??

doesn't really have a pattern to it. just does it occasionally. mostly when engine is still alittle warm. seems ok if i shut off, and immediately fire her up again.

 

[Topbuzz]

Which engine is this, the C20XE or X20XE?
It may be a lazy oxygen sensor.

 

[ChrisB]

Oxygen sensor is not in use during cranking and the first 30-60 seconds of the engine starting.

Poor starting is usually ignition related. Spark plugs (condition and type/make), ignition leads, rotor arm and dizzy cap etc.

NGK normal or NGK V-Groove are my prefered plugs.

 

[Paul]

My mate had this problem and it was a fuel leak!!
After a while (i.e overnight) it would take a while to start.
Saying you just changed the CTS and the problem started, perhaps the CTS is faulty ?

Paul

 

[GSIdude]

mines a late C20XE. dizzyless system.

DIS unit was replaced a half a year ago due to misfiring.

does it regardless of plugs i use.

 

[GSIdude]

My mate had this problem and it was a fuel leak!!
After a while (i.e overnight) it would take a while to start.
Saying you just changed the CTS and the problem started, perhaps the CTS is faulty ?

Paul

doesn't ever do it when parked overnight. only after 1-3 hours of parking, when engine is still alittle warm.

CTS faulty?? i was thinking of that when the problem started. but it was a new sensor and bought from the dealer!!

bad shipment??lmao

 

[GSIdude]

anyone else has a clue?

 

[DarrenH]

sounds like your engine is about to implode, i'd stop using the car to be honest.

 

[GSIdude]

come on odders, i know i'm fussy lmao but it deffo doesn't sound too normal to be doin that.