C

C4RL

New Member

• Feb 19, 2013

• #1

Hi all got a problem, engine is fine on tickover and pulls like a train but when standing if u press the throtle peddel down to about 1/4 and hold it there it continues to pulse or surge up and down any ideas??????
Thanks Carl

 

C

C4RL

New Member

• Feb 19, 2013

• #2

Anybody had this problem?

 

nathan5346

Well-Known Member

• Feb 19, 2013

• #3

No...dont want it either, All i can suggest is dont put ya pedal down 1/4 while its standing

 

C

C4RL

New Member

• Feb 19, 2013

• #4

Wish it was that easy my friend. Also does it at a steady 50-60 mph just seems to find a dead spot. As if its not responding!!

 

C

C4RL

New Member

• Feb 20, 2013

• #5

Can anyone out there shed some light on this wierd problem?????

 

jamesmartin

Well-Known Member

• Feb 20, 2013

• #6

id put on diagnostics read fault codes and look at live data ,could be poor throttle pot if in the same position on throttle when fault occurs ,could be a good few things ,

 

C

C4RL

New Member

• Feb 20, 2013

• #7

Throttle pot?
I have changed a number of parts that include.
Inj harness
Tryed another ecu
Intank fuel pump
Mas senser
Filter head and filter
Inj seals and washers
Fuel block
Now on changing cam as it has wear on 1 of the lobes that charges the injector.
Other than that i'm what you call stumped

 

jamesmartin

Well-Known Member

• Feb 20, 2013

• #8

connected to pedal,cant see how it can be cam if it runs well above and below that poor spot ,is it one particular throttle position

 

C

C4RL

New Member

• Feb 20, 2013

• #9

Yes ur right same position all the time and and also if u build revs up very slow.
Thanks.

 

C

C4RL

New Member

• Feb 22, 2013

• #10

Well its not the throttle pot. Dont no what else to try!!

 

Bromsgrove Defender

Well-Known Member

• Feb 22, 2013

• #11

C4RL said:

Well its not the throttle pot. Dont no what else to try!!

Click to expand...

I'd be havin a look at the resistance in all the wiring from the throttle pot see what that throws up.

 

ratty

I'm not special I'm limited edition

• Feb 22, 2013

• #12

Get it on a diagnostic pooter.

What make was the injector harness that you fitted?

Have you checked and cleaned the red plug at the ecu again since fitting?

 

C

C4RL

New Member

• Feb 22, 2013

• #13

Not showing any faults on dio comp.
Genuine inj loom.
Pedal that was used was fitted off a doner defender.
Thanks

 

C

C4RL

New Member

• Feb 22, 2013

• #14

And plug is clean as a whistle.

 

ratty

I'm not special I'm limited edition

• Feb 22, 2013

• #15

It's not fly wheel or crank damper pulley is it?

 

C

C4RL

New Member

• Feb 22, 2013

• #16

Dont think it will be fly wheel. Got no vibrations or any noise. Not sure on pully would this cause this kind of problem??

 

Last edited: Feb 22, 2013