esimkins
Active member
History, real quick....
1997 TDI Jetta converted to M-TDI pump. It's ran rather well for the past three years for the most part. It's now died for the second time, so I am in process of converting it back to the E-TDI pump.
I had put the E-TDI pump on the first time the M-TDI broke but it had some faults from the engine codes causing it to not rev very high (limp mode I suspect), point is that it worked, idled, reved a little.
This time, I put the E-TDI pump again and now I get no fuel out the injector lines. Only a little as I also have a lift pump due to old Veggie-oil conversion in the past. I re-installed the third injector, connected the electric plugs to the E-TDI pump. Cleared the engine codes so there are currently none on the OBD. Cracked the fuel lines to try to bleed the lines, but no squirting out the lines.
Towards my question....
The company rebuilding the M-TDI pump said the sheer pin was broke, said it was a safety pin that snapped inside the pump to save the rest of the pump from breaking.
So my question is.... because my pump isn't spitting any fuel out the lies, could this sheer pin also be broke on the E-TDI pump? Does it have this sheer pin? Can this pin be replaced without pulling apart or checked? How does one brake this sheer pin?
Mainly, if my pump is turning and timed, without any fuel coming out, does this just mean it has to be rebuilt? Or is there anything else that will keep the pump from pushing fuel through.
I do hear
1997 TDI Jetta converted to M-TDI pump. It's ran rather well for the past three years for the most part. It's now died for the second time, so I am in process of converting it back to the E-TDI pump.
I had put the E-TDI pump on the first time the M-TDI broke but it had some faults from the engine codes causing it to not rev very high (limp mode I suspect), point is that it worked, idled, reved a little.
This time, I put the E-TDI pump again and now I get no fuel out the injector lines. Only a little as I also have a lift pump due to old Veggie-oil conversion in the past. I re-installed the third injector, connected the electric plugs to the E-TDI pump. Cleared the engine codes so there are currently none on the OBD. Cracked the fuel lines to try to bleed the lines, but no squirting out the lines.
Towards my question....
The company rebuilding the M-TDI pump said the sheer pin was broke, said it was a safety pin that snapped inside the pump to save the rest of the pump from breaking.
So my question is.... because my pump isn't spitting any fuel out the lies, could this sheer pin also be broke on the E-TDI pump? Does it have this sheer pin? Can this pin be replaced without pulling apart or checked? How does one brake this sheer pin?
Mainly, if my pump is turning and timed, without any fuel coming out, does this just mean it has to be rebuilt? Or is there anything else that will keep the pump from pushing fuel through.
I do hear