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VR running rough

smarty091

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ok well got a VR Calais when i drive it in the mornings it runs ok only has a little bit of a misfire. when it gets hot it gets worse.

i have changed Plugs, leads, coil pack, DFI module, injectors.

not sure if it could be fuel pressure regulator??

anyone got any ideas???
 

kingrat502

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one item that gets over looked is your map sensor vacum line..mine had a crack in the line ran rough heaps of black smoke out exhaust but engine light didn,t come on,changed the rubber line and ran great
 

smarty091

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one item that gets over looked is your map sensor vacum line..mine had a crack in the line ran rough heaps of black smoke out exhaust but engine light didn,t come on,changed the rubber line and ran great

where abouts would i find this vacumm line??
 

kingrat502

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best way is on the firewall you find a map sensor ,passenger side,follow where the hose goes,,,,they are like a small rubber line but go hard and brittle with the heat,,
 

smarty091

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best way is on the firewall you find a map sensor ,passenger side,follow where the hose goes,,,,they are like a small rubber line but go hard and brittle with the heat,,

ok thanx alot ill check tomorow see how it goes.
 
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