Timing belt replaced engine missfires

ISOLATE WHICH ONE IS MISFIRING, THEN CHANGE THE PLUGS ROUND TO SEE IF SAME ONE IS MISS FIRING, IF IT CHANGES TO OTHER ONE WHERE YOU PUT PLUG INTO THEN CHANGE THE PLUG, IT COULD BE A COIL PACK THOUGH. Sorry caps.

you cannot change oxygen sensors from front to back as they are 2 completely different units doing completely different jobs
the problem is water in the electronics and you use a dewatering fluid ( wd-40 or like ) to disperse the water not starter fluid

maybe ur altinator mate,check the charging,and tighten ur timing belt i guess,try it

move the ignition coil to another cylinder and see if the miss fire moves. If so replace that ignition coil. If the miss fire stays on that cylinder it is more likely the fuel injector. Was their carbon on the spark plugs when you removed them? This is indicative that the fuel injector is gummed up.

better look at the blender door. this is a vacuum controled door that allows hot or cold air to flow into the HVAC system and blends the temps together to make the desired temp for you, but if this is electronicly controled you might have a temp sending unit bad or even a control unit bad, as for the miss fire most people wouldn't know a miss fire from a bump in the road anymore. engines anymore if there is a missfire code, there is a missfire, find out what cylinder if missfiring and replace the sparkplug, wire, or coil, you can have the wire loaded to see if its the spark plug or not, and then get the coil tested as well, this will say you money inthe long run since replacing random parts if a waste of money on your part. test it and find the failing part and replace...

trying to rev the engine in neutral will not work. the computer will limit the rpms.it is kind of a goofy safety measure built into the system. to diagnos the missfire you can remove one plug wire at a time with an insulated pliers.the missfireing one will -not-slow down the engine speed. if all cylinder are firing properly at idle and only misfires under load you will probably need some help have a driver put on the brake and accelerate a little untill it misses. when you have verifyed this try the same thing with the plug wires while it is missing. do not keep the engine torqed this way for more thn a couple of seconds. you could damage the trans.. when you locate the missing cylinder you will need to find out why it is missing. look at the spark plug,and maybe swap one plug wire for another to see if the missfire moves to another cylinder. i am assuming you have no test equipment. if that does not change,see if you can get at that injector for that cylinder and lightly tap on it with a metal punch.if problem seems to go away or engine misses when tapping injector it will need to be replaced.

The wires could be mixed up a bit and this will cause miss-fire and rough running, can cause damage! Get a diagram and take you time with it. Your local library should have the info if not on line.... Google search.....

check intake for vaccum leaks,the gasket also and egr valve, thats alot of parts to have replaced without diagnosing first, if there are no fuel leaks and you said all injectors were replaced then you have a defective fuel pump, also these engines had misfire problem because of dirty injector but you replaced them so count that out. good luck.

have you changed oxygen sensors? also check wire and plug on #2 I changed plugs once and got multiple missfires changed 3 plugs to a different brand and it solved the problem

Sounds like the cat is clogged. Replace it. This is caused by bad gas or just because it got old. Also, have a look at ignition wires. Timing belts either are functioning or broken. They don't sound like anything. If you are at a recommended replacement point...do it. It's much cheaper than waiting for it to break. Engine damage could result upon breakage.