Calling all fuel injection gurus

[87 STEPPER]

Originally Posted by 87Lowrider

In the diagram above, anyone know where the Fuel Module is on the truck? Could it cause the ECM2 fuse to blow intermittently?





Ken

Ken unless you or someone else added it your truck dosent have that fuel module your truck was orignally a 5.7 and it's not over 8500GVW.

I also think you have the fuel pump power grounding out somewhere thats about the only way it will blow the fuse.

An overheating pump wouldnt do it cuz if it overheated to the point to blow the fuse then when you replaced it. it would blow right away cuz the pump couldnt cool off the fast. cuz your so fast at replacing it

[87Lowrider]

Bruce,

Thanks for the reassurance.

I think your right on the fuse issue... my wife reminded me that this seemed to start after I put in the Dakota Digital cluster.. I'm wonderin' now if there's not a wire behind it that is exposed causing this problem?

I'm hoping to get into it tonight to see if I can track it down.

Thanks!

Kenny

[87Lowrider]

Originally Posted by 87 STEPPER

I also think you have the fuel pump power grounding out somewhere thats about the only way it will blow the fuse.

An overheating pump wouldnt do it cuz if it overheated to the point to blow the fuse then when you replaced it. it would blow right away cuz the pump couldnt cool off the fast. cuz your so fast at replacing it

Originally Posted by Captkaos

Kenny, You got a bad ground somewhere. The ECM2 lead should be pink/black.
Are you using nothing from the ECM except the fuel pump?

I took the truck out this morning and blew 3 fuses in a matter of 2 blocks. A direct ground somethere!

YOU GUYS WERE RIGHT! (and I am that fast)

This afternoon, I crawled up in there and got cozy with the engine and found a connector touching the firewall / block from the tbi harness. I missed it the other day. A little Elec tape and presto. I drove it around for about an hour this afternoon, starting and stopping, etc.. so far so good.

Thanks Again for your help!


Kenny

[87Lowrider]

Well,

I drove the truck to work today. Took it on several service calls to customers sites... started and stopped several dozen times... no blown fuses!!!

Still nervous about it though... hopefully I've got it licked!

Kenny