these are just the engine mount dampening solenoids mine are both out too, they are supposed to smooth the vibration of engine to the body. At $400 plus a unit I didn't bother to change them.

P1573 - Left Engine Mount Solenoid Valve (N144): Open Circuit
P1575 - Right Eng. Mount Solenoid Valve Short to B+
P1874 - Valve for Torque Support Mount: Short to Plus

 

Ok yep I remember reading that these are common to fail and they won't hinder the car very much.

These lean codes are tough, I have a pretty significant flex pipe leak so that could be it but on Josh's car it doesn't seem like he has any glaring issues that could be the culprit

 

160,000 miles on it. maybe injectors. I'll fart around with my VCDS and see if I can view the oxysensor codes. maybe they are just old and going out of spec. I'd like to try an adjustable fuel pressure regulator and bigger injectors. anyone know of a kit ?

 

Yea I was thinking of playing with the fuel to see if the filter/pump/injectors were causing the code. I know a vacuum leak or O2 sensors are more likely than a fuel issue. Not sure of any fuel kits, these cars really don't have a mod market. I have to buy the Vag Com and check the specs of everything.

 

Finally got my Hex + Can + USB Vag Cable and did a few 2nd gear logs. Let me know what you think of the logs. I'm guessing the peak MAF reading should only be at 6500 as that is where the car makes the peak HP of 330? I know Ross-Tech says that your MAF reading during a pull should be .80 * HP. So I should see 265 g/s.

From Ross-Tech Wiki:
Fuel Trim Info - Ross-Tech Wiki

It is totally normal for both the first and second fields to be something other than zero. In fact, zeros IN BOTH FIELDS indicates that either you just cleared codes (which will reset fuel trim values) or something isn't working properly. If values get too far away from zero, it will cause a DTC (fault code) and can set off the MIL (commonly referred to as the Check Engine Light, or CEL). Specifications for normal operation are usually somewhere near +/- 10%.

In general, an out-of-spec value in the first field (Additive) indicates a vacuum leak since it is mostly present at idle, when vacuum is highest. An out-of-spec value in the second field (Multiplicative) indicates a fault at higher RPM, and may point to a faulty MAF.


Also, I have a brand new MAF and this is my MAF READING @ IDLE: ~2.72 g/s

It looks like the (Partial) throttle trims are the ones tripping the CEL light as they are more than 10% as shown below:

BLOCK 032:
Adaptation (idle) B1S1: 6.2%
Adaptation (Partial)B1S1: 12.5%
Adaptation (idle) B2S1: 6.0%
Adaptation (Partial) B2S1: 11.7%

ENGINE LOAD %- Is this supposed to be 100% at WOT? As you see mine is in the 80's. Not sure why because it sees Full Throttle and Throttle Valve Angle = 100.

Press the + magnifying glass on the bottom right to zoom in, you will need to press it twice.

2004A8L_LOG2_zps2c911358.jpg Photo by Rn3040 | Photobucket

2004A8L_LOG1_zps1b4d9915.jpg Photo by Rn3040 | Photobucket

Also noticed that I have a readiness issue w/ Catalytic Converter(s) Failed or Incomplete. The car was warmed up when I saw this and the cat temps were ~580+ degrees.

 

*UPDATE*
I noticed my gas cap has ZERO sound of pressure release when I open it. Any ideas if there could be an air leak in the EVAP system or somewhere causing the lean codes?

 

Hi,

Here is what I found :

photo 3 is a pic from google - it seams like the same engine (I am not 100% sure)
photos 1&2 - my engine. The red circled thing has a cap (removed in the photos)

I find interesting that on my engine there was a cap on this thing "opening" but on the other engine (pic 1) there is a tube leading somewhere...

I when to the dealer they said - "it is normal - the cap is suppose to be there, no tube in our database"

Some thoughts ?

 

Pretty sure my car has a hose on that nipple, so yours was capped off? I'm not sure what, but the previous owner might have bypassed something by capping it.

Do you still have the lean codes?

 

Yes, I do!

Have gone to the dealer... they said it is supposed to be capped.
I also have found it on ETKA -it really is supposed to be capped.


But i still get the fault codes

 

If you have a Vag Com, check block 001 and 031 at idle when you first start up. For some reason my car goes lean at idle until the temp is 33-55 degrees. Or at the point the RPMs drop from the cold start. Looks like this is causing the codes.

IACV?
Do our cars have an Idle Air Control Valve? I'm wondering what else besides that OR the O2 sensors are bad and putting out mixed signals until they heat up.

You can see this here in my log, I put some yellow lines where the Air Fuel is normal. I also noticed that when it's lean, the actual fuel corrections are at ZERO. The car isn't lean when the fuel starts correcting.

https://docs.google.com/spreadsheet/...EE&usp=sharing