325 starting issue

Need technical Q/A then you're in the right place

Moderator: martauto

User avatar
theretroking
E30 Zone Regular
E30 Zone Regular
Posts: 276
Joined: Fri Dec 18, 2009 11:00 pm

Post Mon Feb 16, 2015 8:11 am

I've a 325 pre facelift, having starting issues there's no spark
Not sure if the imobalizer is at fault, what's the best way to find out and if it's not the imobalizer what could it be , thank you .
Top
User avatar
Brianmoooore
E30 Zone Team Member
E30 Zone Team Member
Posts: 49360
Joined: Mon Jan 10, 2005 11:00 pm

Post Mon Feb 16, 2015 10:02 am

Is there power at the + terminal of the ignition coil when the ignition is on? If so, then it's not the immobiliser, assuming it's installed in the conventional manner.
Next thing to check is if the fuel pump runs when the engine is cranked.
Top
User avatar
theretroking
E30 Zone Regular
E30 Zone Regular
Posts: 276
Joined: Fri Dec 18, 2009 11:00 pm

Post Mon Feb 16, 2015 1:39 pm

Hi just had the AA out and it started straight away for 10 seconds then cut out then would not start again, he done some tests and the fault is intermittent, there dosnt seem to be a spark and no injection at the same time then will start and cut out after 10 seconds he seems to think it could be a crank/cam sensor anyone help. :x
Top
User avatar
Brianmoooore
E30 Zone Team Member
E30 Zone Team Member
Posts: 49360
Joined: Mon Jan 10, 2005 11:00 pm

Post Mon Feb 16, 2015 2:01 pm

Brianmoooore wrote:Is there power at the + terminal of the ignition coil when the ignition is on? If so, then it's not the immobiliser, assuming it's installed in the conventional manner.
Next thing to check is if the fuel pump runs when the engine is cranked.
Top
User avatar
theretroking
E30 Zone Regular
E30 Zone Regular
Posts: 276
Joined: Fri Dec 18, 2009 11:00 pm

Post Mon Feb 16, 2015 2:04 pm

Brianmoooore wrote:
Brianmoooore wrote:Is there power at the + terminal of the ignition coil when the ignition is on? If so, then it's not the immobiliser, assuming it's installed in the conventional manner.
Next thing to check is if the fuel pump runs when the engine is cranked.
Sorry, there is power
Top
User avatar
Brianmoooore
E30 Zone Team Member
E30 Zone Team Member
Posts: 49360
Joined: Mon Jan 10, 2005 11:00 pm

Post Mon Feb 16, 2015 2:10 pm

Then the chances are that the problem is crank sensor related.
Does your car have two crank sensors mounted on the inlet manifold side of the gearbox bell housing?
Top
User avatar
theretroking
E30 Zone Regular
E30 Zone Regular
Posts: 276
Joined: Fri Dec 18, 2009 11:00 pm

Post Mon Feb 16, 2015 3:01 pm

Brianmoooore wrote:Then the chances are that the problem is crank sensor related.
Does your car have two crank sensors mounted on the inlet manifold side of the gearbox bell housing?
Will check and let you know, if there is 2 would you replace both ?.
Top
User avatar
Brianmoooore
E30 Zone Team Member
E30 Zone Team Member
Posts: 49360
Joined: Mon Jan 10, 2005 11:00 pm

Post Mon Feb 16, 2015 6:45 pm

I wouldn't replace ANYTHING until I know exactly what the fault is. Random replacing of parts leads to more unrelated faults, and a near impossible conundrum to solve.
Top
User avatar
theretroking
E30 Zone Regular
E30 Zone Regular
Posts: 276
Joined: Fri Dec 18, 2009 11:00 pm

Post Sat Feb 21, 2015 10:52 am

All sorted thanks Brian, was the earth strap at the top of the engine it was loose. :D

Hopefully.
Top
User avatar
Brianmoooore
E30 Zone Team Member
E30 Zone Team Member
Posts: 49360
Joined: Mon Jan 10, 2005 11:00 pm

Post Sat Feb 21, 2015 1:32 pm

Which one?
Top

Return to “E30 Technical Help”