vp 5l missing sometimes + hard to start

[tysons_2001]

My vp calais 5l has been missing a bit lately while cruising ya feel it chug a bit and doesnt feel as powerful as it should be, it seems to run worse when the engine is warm.
Also the car is hard to start, takes 2 secs to start usually and sometimes longer.
Recently i've replaced plugs, dizzy cap, rotor button, fuel filter, oil and filter, and also run a bottle of nulon injector cleaner through and have tried different fuels and still the same thing occurs.
What else could be causing the problem?

[Boonz]

have you adjusted the base idle lately??? you might of opened the throttle too much and the throttle plate is revealing the port for the charcoal canister and its purging fuel vapour into the intake manifold..... could also be the coil on its way out

[greenfoam]

Tyson is forgetting that it has a cam in it:P

[Boonz]

does it?? lol could explain the low rev situation

[tysons_2001]

i have no charcoal canister....i just looked before and it has the 2 lines there but they have screws in the ends of em, passed rwc at 2 places like that though!

[Boonz]

so you have a pressurised fuel tank???

[tysons_2001]

i dont understand how the charcoal canister works but yeah probably! lol i can smell fuel in the car sometimes maybe thats why

[Boonz]

take out those screws and invest in a charcoal canister lol...... it ends up saving you petrol money by recycling the fumes

[tysons_2001]

yeah, so does the breather hose from the tank go to the charcoal canister, and the 2 lines from the tb? i'll have to see if all the lines are still there.

[kniever]

get some carby cleaner and give the throttle body a really good clean too, that might help a little

[tysons_2001]

the throttle body is spotless, i went to clean it the other day since i havent cleaned it since ive had the car and its spotless

[tysons_2001]

I'm thinking maybe a rooted coil or something?

[PaRaDoX]

I'm thinking maybe a rooted coil or something?

lol v6 boy, v8 has 1 coil, its the ignition coil which is in the inlet manifold kinda near the dissy, could be the ignition moduel, im no v8 expert see what you guys think

[tysons_2001]

also noticed that the monsta tacho had been goin crazy, like the signal is cuttin in and out for it, the dash tacho also does it a bit sometimes but not as bad as the monsta, guessing this would be linked to the same problem.

[V85000i]

that sounds like ignition module if the tachos are playing up.

[tysons_2001]

thanks mate, what are ignition modules worth and how hard to replace?

[Boonz]

theya re worth about $300-$600 depending wether you go genuine or not.... but id be playing swaps with someone elses before i went and bought one..... two bolts and a connector under the right hand strut tower

[wrx884]

u can get a reco 1 from repco 4 $138 or brand new $400 mine just **** itself on thursday i played swapsies with a 2nd hand 1 it fired straight away but wasnt running right couldnt idle where it was supposed 2 in park and i had a loud knockin noise 2 so im waitin 2 get a reco 1 n see if that helps during the week

2 replace its simply 2 bolts under the wheel arch and a matter of unpluggin 2 looms connected 2 it

[Boonz]

did you use any conductive grease under the body mounting surface? its critical that it has it there to stop corrosion

[STEALTHY™]

I was thinking ignition module aswell.


With the tacho, the problem is you have a perfectly good one in your dash now. Rip the monster tacho out and your problem will be solved

[wrx884]

did you use any conductive grease under the body mounting surface? its critical that it has it there to stop corrosion

sorry was this directed at me? if it wasnt i appologise but no i didnt i never got told 2 do such a thing?

[rompastompa]

have u tried ur timing. ur dizzy may not be tight enougth may be moving or has moved.

[tysons_2001]

With the tacho, the problem is you have a perfectly good one in your dash now. Rip the monster tacho out and your problem will be solved

come with the car, dont wanna rip it out till i find somethin else to put there to fill the hole, dont like the idea of a hole in my dash.
But i agree, why do ya need a tacho when ya got one in the dash already? and a shift light when its an auto?

[V85000i]

hey i think i know what half my starting problems could be, my dizzy cap and rotor button are 30,000 thrashed driven hard as fu@k km's old, and my plugs about 25-30,000 of the same driving style (obviously). i also have 10mm top gun leads, will they be OK. i'm changing the plugs and dizzy cap/rotor though. also i'm gonna get a new coil.

[STEALTHY™]

come with the car, dont wanna rip it out till i find somethin else to put there to fill the hole, dont like the idea of a hole in my dash.
But i agree, why do ya need a tacho when ya got one in the dash already? and a shift light when its an auto?

Unless you run 10s, you don't need a shift light, cause you can hear the motor.

I think you should go find the old owner and punch them for drilling holes in your dash.