peter y.s pang

early morning drive the car within 5 min, suddenly mis-fire when stop in traffic light. but after 2 min, it can fire again. so i keep driving it, after 10 min in normal drive, it happen again. The DME just use few month.

what should i look at ?

djantlive

Bad fuel, pour in heet to see if that helps

peter y.s pang

furthermore the fuel pump and filter just use it less than 5000km.

Endoman

Lots of possible causes including main engine wiring loom which can cause engine fire so take it in for an OBD diagnostic asap.

swmic

How old are the plug wires?

peter y.s pang

both the plug and plug wires less than 1 year old.

TMc993

Did it misfire as in the engine continuing to run but dropping a cylinder or did the engine completely stop running?

peter y.s pang

The engine completely stop.

C4SJOHN

DME relay....

TMc993

Either that or the fuel filter clogging when the engine is running but when the engine stalls and pressure inside the filter is released, the trash in the filter "falls away" from the element, allowing it to start again. Then the cycle repeats itself.

But I would change the DME relay first.

nine9six

Did you get a CEL to go along with the stalling/mis-firing of the engine?

peter y.s pang

thanks for all input.

there are no CEL issue.

this morning make a test drive for 30 min, there are no more mis-fire again ( touch wood).

really don't know what make the mis-fire on yesterday drive.😦😦

one more question, will the loose fan belt cause the demage of DME. i did unplug the fan belt sensor and it still can fire the car, it just the belt light on the clock.😟

hchc

Is the DME chipped by any chance?

IXLR8

Exactly! Do the easy things and most common fault issues first instead of going off on a tangent.