Loud Diesel Knock, 94 Lucida

[SmithG]

I have a loud diesel knock under acceleration, [Engine Management Light on]. The code was checked [14] new fuel filer fitted, the problem disappeared for 50 miles and then returned.

[holtgizmo]

try buying wynnes fuel cleaner and get rid of all the built up carbon this could be your problem or gunge in the fuel line.hope it helps ray

[SmithG]

Have tried fuel injector cleaner, cleaned out fuel lines, changed fuel filter, replaced cam belt, replaced ecu and replaced sensors on fuel pump. Non of these have worked, still drives fine from cold but after about eight miles the fault re-occurs and code (14) appears on the ecu again.

[james1234]

I have a similar problem, in the process of trying to resolve it, lucida 94 runs fine from cold until you stop. when you restart after say 20 minutes engine noise and warning light, code (14) as well. (Replaced fuel filter) I will be investigating further over the next few day (possibly injection pump pressure.)

[james1234]

Have tried fuel injector cleaner, cleaned out fuel lines, changed fuel filter, replaced cam belt, replaced ecu and replaced sensors on fuel pump. Non of these have worked, still drives fine from cold but after about eight miles the fault re-occurs and code (14) appears on the ecu again.

Hi again, after trying alot of things, replaced cold start sensor on fuel injection pump, problem solved. Hope this helps. :)