feroza missing an wont rev

[optima]

hey everyone i have a bit of a problem with my feroza it has a miss of sorts between 3000 an 4500 rpm ( but it varrys at when it happens ) an it also wont rev any harder once it starts missing i have fitted new plugs, leads, fuel filter, air filter an also free'd up the vac advance but it is still missing an playing up does anyone have any ideas on what it could be

cheers daniel

[Goatse.AJ]

Is it using oil?

Any sign of oil in the coolant or vice versa?

Have you been running standard fuel and been experiencing pinging? It could be burnt valves.

Timing?

Timing belt?

[optima]

i havent had it long enuf to tell if its burning but i did peplace the timing belt all the marks were alined proply when i fitted the new belt. were abouts should the timing mark be when you have a timing light on the crank pully as there is only one mark ???? or is that the mark it needs to be lined up with my workshop manual says 3 to 4 degrease any ideas

cheers daniel

[wacky]

Have you identified whether its a spark issue?

Dodgy fuel pump/regulator? Both of these will cause it to run out of puff, miss and carry on. Just throwing ideas out there.

[optima]

thanks for the help fella's it turn'd out to be a combination of crap in the injectors an throttle boby i think as i cleaned the throttle body out an i ran some injector cleaner as well an no its going sweet ( for a 1600 anyway ) thanks for all the help
cheers daniel

[optima]

hey everyone well i thought i fix my problem but no after a couple off hours driving it has arose again missing an carying on i have ordered a new dizzy cap an rota button as myn looks a little worse fotr wear from what i can tell the fuel pressure is fine as you can disconect the regulator an it still miss's
anymore help would be greatly apreasiated

cheers daniel