Powertrain Warning Light

[Sarah735]

Hi,

(Apologies in advance if I don't explain this too well)

I have been experiencing problems when starting my car (Mazda 2 1.4 Diesel Manual), particularly when it has been stood overnight and has been quite cold. It has been taking a couple of attempts to get the engine to kick in after allowing the glow plug light to go out. The Powertrain Warning Light has also been coming on intermittently.

This morning it seemed to be at it's worst... it took six attempts of turning the key to start the engine before it actually started and the warning light came on and remained of for the whole journey (which it had not done before).

I have booked the car in with the garage though have lost faith in them a little after a previous problem that took from Sept 2010 to June 2011 to fix!

(I had a slight oil leak - they first changed the exhaust manifold, then the turbo, then the turbo again (which they had to fix because it failed after 5 days and left me 300 miles from home with no turbo), then they had it for 3 weeks and within the three weeks they tried one thing (that didnt work), then said could be low pressure in the pistons and then finally said they had ordered a new engine. So the engine was replaced at 17,000 miles but I never received any reason for the original problem.) So as you can imagine I am somewhat annoyed that after only 4000 on this new engine I am getting problems again

Any advice as to ideas of what the problem may be or anyone who has experienced similar would be appreciated.

Thank you

 

[Chris_uk]

i would say try messaging cal locke in the UK forums as he has a diesel, i myself have a petrol so am no help im afraid although to be totally honest the garage you have been to sounds horrible, causing more problems than they fix haha, hope it all gets sorted soon though

 

[CorkSport]

The diesel model is not sold in North America so I am not going to be much help either.

-Derrick

 

[Joker2]

If you have a fuel rail pressure sensor, make sure that the commanded fuel pressure reads actual. In other application, I have experienced the fuel rail pressure actual to be above commanded value and this forces the ECM to command the fuel pump to drop pressure, thereby creating an under-pressure condition which will stall the engine or prevent start-up. If you disconnect the fuel pressure sensor, the ECM will go to a fail safe mode and the engine will start. If so, then the fuel pressure switch is defective.

 

[Chris_uk]

i think that may be a bit to technical for her dude, lol

 

[Joker2]

i think that may be a bit to technical for her dude, lol

Not at all, dude. Girly can buy the service manual, a scanner and start doing her own work with some help from friends and family. She can't be doing worse than her shop!

 

[aishu2015]

Powertrain

Diesel model cars are used in future...It also helpful to reduce the using of petrol....

 

[BRIAN_MP5T]

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