Installed New injection pump on 6.2L. Now im having trouble getting it started.

[wrench33]

A new injection pump was installed on a 6.2 L. Timing marks are lined up, and its getting fuel through the lines. I adjusted the TPS just to see if I could get it to turn over. Ive had no luck.

What am I missing?

Thank You.

Benn

 

[timarr]

We need alittle more info of truck, what you did and whats going on to help out.

 

[doghead]

It won't turn over? as in crank over with the starter?

 

[dilvoy]

One of the wire connectors is smooth and one is ribbed so they can be matched to the connections on the injector pump. Maybe you switched them around.

 

[wrench33]

Its a M1025 Humvee. I replaced the injection pump. I i got it running. Its running really lean, and when under a load cuts out.

I believe its in the throttle position sensor, however I just cant get it figured out and its starting to frustrate me. I appreciate the comments on this thread, Im trying to research the issue now.

If anyone knows what this could be by what I have said on here I would appreciate your input.

Thank you.

 

[timarr]

Start with stupid stuff like pluged fuel filter.

 

[nattieleather]

Air in the lines? Plugged filter? I always try to trouble shoot under the K.I.S.S. method. Keep It Simple Stupid! Like timarr said start with the stupid stuff and work your way up to the hard stuff.

 

[dilvoy]

The Throttle Position Sensor has nothing to do with the fuel. It is used to properly shift the 4L80E Transmission while it is driving.

 

[Retiredwarhorses]

What's the part number to your new injector pump?
what motor and transmission do you have?

unless you have a 4L80E tranny you don't have a TPS....

 

[Retiredwarhorses]

And what do you mean "it runs lean".