engine turns off then wont restart without brake cleaner

[Vrsbaby]

HI peeps. My octavia vrs pd170 shuts off while braking, turns over but wont start. Spray brake cleaner and it starts then its fine after that all day. Done it twice now

[trundlenut]

Sounds like it could be a fuel problem.

[Gti Jazz Blue]

Any pattern as to how much fuel onboard when it fails ? Could it be the tank pickup pump ?

 

Fuel filter been changed at all ?

[Vrsbaby]

Plenty of fuel on board. Stalled again as i was driving up hill in 3rd, it was struggling because of low revs and stalled again when braked. Started with brake cleaner. Now it will be fine even if i turn it on off until it stalls again

[Vrsbaby]

Car misfires in idle and upto 1300rpm. Do you think its the shoddy injectors that we're recalled.

[trundlenut]

A scan for fault codes would be a good starting point.

 

Has the car had the injector recall done?

[Vrsbaby]

Not that I know of. It's an ex cop car with 170k miles. I've had endless problems with it. Dpf removed, engine changed, injectors are from old engine

[trundlenut]

That could make things a bit more complicated.  Why was the engine changed?

 

A fault scan would be the easiest starting point though.

[Gti Jazz Blue]

Tandem pump would also be common between braking and fuel delivery could there be an issue there ?

[rwbaldwin]

Will it stall at idle if you hold your foot hard down on the brake pedal?

[Vrsbaby]

Engine changed due to cracked head. Vcds not showing any fault codes

[classic]

In the "old days" it was said that diesels became addicted to sprays such as "Easy Start".

In actual fact using a spray such as ether or, I guess, brake cleaner, causes detonation which would either coke up or damage the injector. The engine gets progressively more difficult to start.

[jpmurray]

Be careful with brake cleaner as it will start to rely on it.

[RJMcLean]

Had similar issues with my old car. Carry out a drip test. You may find it will need new injectors

[Vrsbaby]

Sorted fellas thnx. Mechanic bypassed the fuel filter to see if it will fix the problem. Problem sorted so got a new fuel filter+housing.