Error code 77 injector pump

[Caleb]

Hey I’m a new navara owner, 2006 D22 ZD 30 single cab. Engine light has come on about 10 minutes after start up but runs fine. Did a error code read and it’s saying injector pump timing error code 77

I’ve changed the fuel filter and it drives fine. I did install a 3inch system on the old girl several weeks ago but struggling to see how this could be related.

Does anyone have any advice for me? Hope I don’t have to change this out.. the cars just clocked 200k cheers

 

[tweak'e]

first thing is to check for air being sucked into the fuel line. fit a bit of clear fuel hose and look for bubbles.
common cause is the fuel filter as people tend to not change the bottom o ring. also the primer itself is know to leak.
also check its the right filter some companies list the wrong one.

 

[Caleb]

I have changed the primer pump which was faulty, and car is now running ok. Engine light still comes on after about 10 minutes of driving.

error code is injector pump timing. Called a diesel injection specialist and they said this is the early signs of the pump needing replacement. 5k.. Has anyone else experienced this and is it likely to be the pump or something a little less expensive!!

CHeers

 

[Boogieboots]

Any problems running other than the check engine light? Is it still a 77 code?

 

[tweak'e]

I have changed the primer pump which was faulty, and car is now running ok. Engine light still comes on after about 10 minutes of driving.

error code is injector pump timing. Called a diesel injection specialist and they said this is the early signs of the pump needing replacement. 5k.. Has anyone else experienced this and is it likely to be the pump or something a little less expensive!!

CHeers

yes it can be the pump but the most common issue is blocked filter or sucking air in.
the code is simply that it cannot reach proper timing. the injection timing control is powered by the injection pump internal fuel pressure, eg hydraulics. if the pump is worn it won't make enough pressure to run the timing correctly. but fuel flow restriction, which also includes air in the fuel, will also alter the fuel pressure, which alters the timing.

so check for air leaks with a clear bit of fuel hose. makes sure there is no bubbles. air can build up in the filter and then get sucked through all at once.
people have found things like cracked hose ends.

 

[dpcindustries]

Hey I’m a new navara owner, 2006 D22 ZD 30 single cab. Engine light has come on about 10 minutes after start up but runs fine. Did a error code read and it’s saying injector pump timing error code 77

I’ve changed the fuel filter and it drives fine. I did install a 3inch system on the old girl several weeks ago but struggling to see how this could be related.

Does anyone have any advice for me? Hope I don’t have to change this out.. the cars just clocked 200k cheers

 

[dpcindustries]

Try your plugs and clean them. I had the same problem and it went on for weeks, got it towed twice. I was ready to give up on it.
It had been at the mechanics for months and got a new injector pump, timing chain and cost a fortune. Then it ran for 2 weeks and started doing what your describing. I was over it. Had the 77 pump code, the cam sensor code and once a turbo pressure or something.

 

[Caleb]

Cheers for that. I have just given up. Going to the diesel mechanics tomorrow.

 

[dpcindustries]

It’s worth tapping the wire connectors whilst running first, it’s cost me 5k and It makes me wonder if I needed to change the injector pump at all.