[TURBOTONE]

hi after some help if anybody can its my first saab love it but got a major fault when its cold the car starts great idles and revs runs perfect, but as soon as it reaches normal temp misses and then chugs and cuts out and it will not restart untill its cold again, then its the same thing every time.....its a saab 9-3 tid 2003 thanks for any ideas pulling my hair out with this

 

[jezz1]

Moved to correct section.

 

[kez]

welcome
how many miles ? fuel type

 

[jezz1]

Diesel :thumbsup:

 

[kez]

Diesel :thumbsup:

lol missed that bit m8.............watching wrong turn 4

poss cps among other things.............turbotone you had cel light on?
maybe also worth cleaning egr

 

[TURBOTONE]

yeah egr fine cel light said po342 but think that was because battery was tired

 

[jezz1]

I don't think P0342 has anything to do with the battery, it's for a camshaft position sensor issue.

 

[the zohan]

http://engine-codes.com/p0342.html

 

[TURBOTONE]

yes true garage but cleared code and from cold start code does not reappear untill car struggles to restart and battery is really weak pretty sure thats the only reason for code

 

[TURBOTONE]

just checked your link to codes garage and its there at bottom of list dead or weak battery gives a po342 thanks for that

 

[aerojon]

won't be the battery,if the battery is on the way out,you get all the warning coming up on the sid with the 9-3 SS.

 

[kez]

won't be the battery,if the battery is on the way out,you get all the warning coming up on the sid with the 9-3 SS.

as ^^^^^

p0342 will be the cps sensor

 

[Safi]

I had the same problem a few weeks ago, but I have a 2.0T petrol. It was the ckp sensor.

 

[TURBOTONE]

thanks safi what does that sensor do please

 

[TURBOTONE]

ah just had a look yeah cranshaft position sensor seems common on these but it was one of the first things i changed

 

[TURBOTONE]

still ongoing!!!!!!!!!!!!

 

[TURBOTONE]

it will start and stop all day long if i dont let it reach normal temp but as soon as it gets there and it dies it will not resart till its proper cold turns over wont fire proper pain in the ring

 

[TURBOTONE]

seems nobody has a clue well looks like the scrap yard for this i think

 

[the zohan]

seems nobody has a clue well looks like the scrap yard for this i think

Really, you are expecting people to diagnose a fault from your description over the internet. Take it to a indie/specialist and get them to look at it before you scrap it would seem a more sensible choice.

Whilst the CPS may be fine the ring it uses to respond to may be damaged, corroded or broken. In addition there e could be an electrical fault - alternator/battery.

In the good old days all a diesel needed to run was compression and fuel and it would simply keep going. More modern diesels rely on slightly more, very high pressure fuel pumps running at 10,000psi, injectors that are far finer and higher tolerances for a start.

It could be a compression leak or all sorts.

By all means scrap your car but find out what is wrong and make an educated decision based on the facts.

 

[kez]

As zohan as said it is very difficult to diagnose a problem on the internet alls we can do is go on what peep say and give common advise and alot depends on how the other person interperates it and there skill set to go from there.

O.k you say you changed cps have you checked electrical readings with a multimeter, checked for damaged corroded wiring to and at cps sensor is it fitted correct is it picking signal up from other part.............all this is still to do with the sensor

what make of sensor did you put in there was a thread on here not so long back where they replaced cps but failed day after and threw his diagnostics out as he believed the cps was ok..................he then went and purchased a genuine bosch sensor bingo problem solved...............genuine china.com so to speak are very hit and miss re quality

another thing to check has the timing slipped slightly when was last time you changed belt ?............not so long back helped a guy who had changed everything with similar probs as you and ended up timming slightly out

it could even be related to the starter turning over or below the fuel map threshold ..............a faulty starter motor or relay could cause this problem...............replacing starter may help maynot/replaceing the relay or putting a resistor across the relay so that the car thinks its cold starting on initial start up...........we do this with the ford rrv's in work

as you can see things start to go more in depth and depending on your skill set diagnostic equipment you have interperating diagnostic readings are a majour factor................so as zohan says take it to indie before you scrap could be something simple or if you feel confident in more in depth diagnostics will try to guide you but can be difficult as said over the internet