Airbornec507

First a little history on what I just completed. I just completed a PAC 1218 valve spring swap and caddy lifter swap. Also went to a Lloyd Elliot PP Intake and Holley 58mm TB. I have a new tune from PCM for less to adjust for this. Here's the issues:

I started the car and it would run for a little then when the O2 sensors would read zero's and Kpa read 100 I sould start to get some white smoke from the engine. Not sure what that was all about. The knock counts would go up and I would get significant knock retard. I never heard any audible knocks or poping from the exhaust. Visually and audibly everything looked normal minus the smoke coming from the engine bay at said time. I did get a dtc of 96 but that realy has nothing to do with this I don't think. DTC 96 is engine oil lamp fault. I have the .csv file for someone to take a look at. Or the datamaster file just post up the email.

Also the valvtrain has absolutely no knocking and audibly runs extremely smooth. I set the preload on the RR to 1/2 turn on 7/16 studs. I also just pulled the valve cover off as well as inspected a spark plug to see if I could gather any additional info. Both areas look completely normal with no problems that I can see.

Please post an email and I'll send you either or both files.

Injuneer

When does the MAP sensor read 100kPa? Are you sure you aren't reading the barometric pressure?

Airbornec507

negative. It reads normal for about 15 to 20 seconds then it starts pulling timing, the Oxygen Sensors start reading zero, and the KPa start rising until it maxes out at 100.4 KPa. I sent you an email with the .csv file to the email you have in your addy.

Z95m6

I believe a KPA of 100% means you're wide open throttle, or you have no vaccum. Also I think the lower the O2 millivolts the leaner the car.

Airbornec507

I wonder if an intake gasket getting sucked into the intake would cause this? That would cause a burning smell and a huge vacuum leak and a lean condition?

Injuneer

Not in the file you sent me. Up to record 75 when the engine is not running, and after record 208 when you shut it down, the BAR = MAP = 100.4, which is totally normal. When the engine is running the MAP never goes above 90.4kPa, and thats when you are playing with the throttle. When you shut is down in record 208 the MAP goes up to 100.4, the O2's drop to 0 on the left and 4 on the right. Why would you expect anything else when you shut the engine down? Why would the knock retard of "6" be of any relavance when the engine is not running? Or are you saying you did not shut it down at record 208?

You did notice the MAF is reading "0".

That file was basically a cold start. You aren't going to learn much from it. Seemed fairly unstable. If you didn't shut the engine down at record 208, you have serious problems with the PCM.

Airbornec507

Yeah I did another run with it later and didn't notice the O2's or MAP fluctuations while the car was running(so yeah your right about shutting the car off then the datamaster run in that order...good catch). It did however start smoking from the driver side valve cover and started to pull some timing. I'm going to pull the intake and see if there is some rubber laying somwhere it shouldn't. It's a possibility that a rubber piece from the gasket maker severed off during the torquing process and is contaminating a cylinder. Not sure.

As far as the MAF yes I noticed that. That's why I have a new MAF on there right now and it still seems to read zero. I must have a short in the wire somwhere. I'll have to trace it and find out what the deal is. Meanwhile the car will run in speed density mode.

Injuneer

See if you are getting 12V to the pink wire in the MAF harness connector.