I have a friend that just bought a 93FD base model, that has been in storage for several months. I don't know if the previous owner prepped the car correctly for storage. The car idles fine but the engine surges a bit. At idle, the exhaust smells fine, rich, but fine. When he drives his car, the exhaust is very slightly smokey blue, she's burning oil, you can smell it. If he hits the throttle hard while in neutral, as soon as he lets go, there's a big puff of white smoke that comes out from behind the UIM. The smoke doesn't smell like fuel, coolant or oil. WTF?? Could there be a leak in the engine housings? These are his mods:

ACT street strip clutch
ACT Streetlite Flywheel
Apexi Power FC + Commander
Block off plates
Unorthodox Full Pulley
Racing Beat Dual Tip Exhaust
Downpipe/Midpipe Combo
Fuel Injectors 1300cc
Nippondenso Fuel Pump
HKS Twin Power Ignition
HKS Twin Power harness
Greddy Dual Intake
Greddy 3 Row FMIC
Eibach Prokit Springs
Racing Beat Front Sway Bar
Front strut bar
Blitz Univeral BOV
enfini y pipe,
AST bypass kit,
sx fpr with fittings,
non sequential turbos with rat's nest removed,
no emissions equipment,
no air pump.

We going to do a compression test this week and go from there. Any other suggestions? Thanks!

 

Coolant pressure test.

Dave

 

I'll tell him to have that checked. So the overall symptons may be due to a coolant leak? Or the smoke from the UIM may be from coolant? Thanks Dave!

 

Could be anything. First big thing is to find out what fluid is being burned, which can usually be discovered by figuring out what fluid level keeps getting low . You might also have more than one problem - the engine bay smoke could be a coolant leak or something, and the exhaust smoke could be a bad turbo, for example.

Dale

 

It could also be a slightly unseated o-ring in the rotor. I am experiencing the same slightly greyish/white smoke puffs which dissipate immedialtely when hitting the throttle. Had my specialist see them and he is quite sure it is so if I understood him well. All other things are fine with my engine, readings, ideling, compression etc. Strangely though the oil level is always at the F level of my dipstick and I check it regularly before starting as is the water level.??? It is jsut my metering pump that is giving a bit extra oil but we are monitoring that with every tank of gas consumed to regulate the flow.

He said that in time is should go right back where is unseated from. ???