12-09-2013, 08:27 PM
Smoke off load isn't that unusual once you get into normal boost range, as the car won't make anywhere near full boost at a stand still, could well be the maf at fault there.
If it's missing you've only got a few options in terms of what the issue can be: fuel, air or compression.
-Air supply issues tend to be all or none, so it's unlikely to be that, only thing it could really be is something stuck in a port.
-If it's fuel, an injector will either be firing too much or too little fuel, you could do a leak-off test to give you some idea, but the only way to really know is to get the full set tested by a specialist.
-Most likely imo is a compression issue, whether it's a bent rod (perhaps the car has been hydrolocked in the past), or a broken cam train part or a leaking injector seat is a bit harder to tell. You might be able to see some deposits around the base of one of the injectors if it's a leaky seat, but otherwise it's going to be a long/specialist job again to find the issue and fix it.
Tbh if it doesn't affect the running of the engine i'd be inclined to leave it, otherwise you could spend a lot of time and money chasing the issue.
If it's missing you've only got a few options in terms of what the issue can be: fuel, air or compression.
-Air supply issues tend to be all or none, so it's unlikely to be that, only thing it could really be is something stuck in a port.
-If it's fuel, an injector will either be firing too much or too little fuel, you could do a leak-off test to give you some idea, but the only way to really know is to get the full set tested by a specialist.
-Most likely imo is a compression issue, whether it's a bent rod (perhaps the car has been hydrolocked in the past), or a broken cam train part or a leaking injector seat is a bit harder to tell. You might be able to see some deposits around the base of one of the injectors if it's a leaky seat, but otherwise it's going to be a long/specialist job again to find the issue and fix it.
Tbh if it doesn't affect the running of the engine i'd be inclined to leave it, otherwise you could spend a lot of time and money chasing the issue.