bad start cuts out 1200 revs

got a freelander 1 td4 help wanted starts some times when you rev it is gets to about 1200 revs then cuts out then wont start any help would be apecheated thankyou

First thing would be get any codes fRon the ecu

Dar ran Dar ran said:

First thing would be get any codes fRon the ecu

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Or manners.

no codes on the ecu changed the crank sensor cam sensor maf sensor air intake sensor

Nodge68 said:

Or manners.

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nothing on ecu

tonyhusky said:

got a freelander 1 td4 help wanted starts some times when you rev it is gets to about 1200 revs then cuts out then wont start

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As Nodge says…
Hello?
Please?
Thank you?

C’mon, it really is a friendly bunch on here and there is a wealth of knowledge available, but dont don’t expect everyone to leap in on that opening!

sorry did not know how to put it thought it was straight to the point

I notice you say it ‘sometimes’ cuts out and then won’t restart.
Possibly the LP fuel pump on the way out? When it cuts out and you try to restart, can you hear it running (r/o/s wheel arch)

Freddie17 said:

I notice you say it ‘sometimes’ cuts out and then won’t restart.
Possibly the LP fuel pump on the way out? When it cuts out and you try to restart, can you hear it running (r/o/s wheel arch)

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hi there thankyou for that the lp pump is still running all the fule presures are there and in tolerance
had live data on the rail and no drop in presure when it wont start and after about ten minits it will start but if you switch off it wont again for a bit changed fule regeulater on hp pump with no efect thankyou

Try unplugging the MAF and see if it make a difference.

hi

Nodge68 said:

Try unplugging the MAF and see if it make a difference.

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hi there yes just tried that and no difrence at all
do you thunk the timing could of sliped ore the ecu has gone down
thankyou

hi all changed all senser on the engine wiring loom on engine and wiring loom on injectors also changed the injectors to new ones changed fule filter and lp pump
thankyou

Unlikely to have a timing error, unless the crankshaft has broken.
If the ECM had failed, it wouldn't start at all.
Are there any codes listed?

Nodge68 said:

Unlikely to have a timing error, unless the crankshaft has broken.
If the ECM had failed, it wouldn't start at all.
Are there any codes listed?

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hi there there is no codes listed on it at all
thankyou

If you had a dodgy pump that wasn't building pressure, but occasional built enough to start the engine - I recon it would go into limp mode rather than cut out if the pressure dropped. But it looks like pressures are OK.

Its the exhaust/cat blocked? If it was blocked, would it 'cough' when turning as it tried to start up rather than nothing at all?

Recon you must have a dodgy solder (in the ECU or a pin to the injectors maybe) or relay or summat.