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Are These Levels Normal?

1009 Views 7 Replies 3 Participants Last post by  Mikey319
I took my car on a drive for 15 minutes and these are the levels I got. Max speed I went was 45-50 mph. It's a 2002 V6 ATQ
I surprisingly haven't had a check engine light yet and my secondary air system has been "complete" according to the OBD II
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The "secondary air system" only operates during the first minute or so after a cold startup.
I have no idea about the rest of the numbers. How's the car run?
It's running okay I guess? I really don't know what okay is though.
Yes, everything looks within spec. The biggest items I looked at were Long Term Fuel Trim %, Short Term trims, and throttle angle. Trim values should be + or - 10%, not exceeding those ranges in either direction. Yours are pretty low and don't raise eye brows. Throttle angle is sitting at a reasonable value. Additionally, engine idle speed is within the FWD spec (680-800 RPM,) and engine temperature is within its proper range. All the green COMPLETE values on the last image indicate that those systems have passed the OBDII "Readiness" tests that emission testing inspection places usually check. The car is able to take readings from multiple sensors to come to the conclusion that those emission components are within spec of the manufacturers design.

All the other information changes in real time usually, such as O2 sensors, mass air flow sensor reading, engine RPM, engine load calculation, etc.

Specific VAG specific links for reference:
Fuel Trim Info - Ross-Tech Wiki
Throttle Body Alignment (TBA) - Ross-Tech Wiki
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Yes, everything looks within spec. The biggest items I looked at were Long Term Fuel Trim %, Short Term trims, and throttle angle. Trim values should be + or - 10%, not exceeding those ranges in either direction. Yours are pretty low and don't raise eye brows. Throttle angle is sitting at a reasonable value. Additionally, engine idle speed is within the FWD spec (680-800 RPM,) and engine temperature is within its proper range. All the green COMPLETE values on the last image indicate that those systems have passed the OBDII "Readiness" tests that emission testing inspection places usually check. The car is able to take readings from multiple sensors to come to the conclusion that those emission components are within spec of the manufacturers design.

All the other information changes in real time usually, such as O2 sensors, mass air flow sensor reading, engine RPM, engine load calculation, etc.

Specific VAG specific links for reference:
Fuel Trim Info - Ross-Tech Wiki
Throttle Body Alignment (TBA) - Ross-Tech Wiki
That's great to know! I've been getting a cat code but it hasn't come back. Apparently my brother saw white smoke from my exhaust from a "cold start" as in was sitting over night. Is that okay?
That's great to know! I've been getting a cat code but it hasn't come back. Apparently my brother saw white smoke from my exhaust from a "cold start" as in was sitting over night. Is that okay?
White smoke is usually indicative of condensation in the exhaust or PCV system, which is pretty normal. I wouldn't be alarmed by a little bit.

CAT codes are very common on these engines. For some reason, the tolerance on the emissions allowed from the CAT is very tight in the ECU. There was an ECU update that went out to help with this a bit, but I'm not sure on the long term effects that had for owners.
I haven't had a check engine light in over 300+ miles and everything has been passing. I'm wondering if the alternator was messing with everything. Hmmmm


Was it a recall? Because I'm not sure if my car had it or not. I asked if there were any open recalls on it when I went to the dealer and they said there was nothing. I also smell either power steering fluid or coolant after driving when I stand outside my car. I don't quite understand why. Apparently whoever "fixed" my car first at Firestone was fired for not just my car, but other issues. I'm really mad at Firestone right now. That worker said my transmission fluid level was fine after some fell out from when he did my timing belt and such and I went to another mechanic and I was a quart low. I was fuming. He also took my car apart roughly and scratched my headlight. It was confirmed it wasn't taken apart correctly by the Volkswagen dealership. They also broke my latch cover to my hood. I'm actually thinking of suing. They sent me off with a breaking serpentine belt without looking at it and yelling at me saying I was being hostile by asking for the manages phone number. I'm caring him again and telling him they put the wrong alternator in my car and such and saying that my car was taken apart roughly. He's not going to stop hearing from me until everything is fixed. Ever since I got it back I also hear a click over every bump and turn in my steering wheel since I got it back too. They charged me 2,300 dollars for an alternator, serpentine belt, pulley, fan clutch, (that I'm sure the idiot broke because it WAS fine!) battery, water pump, and timing belt. The dealer only charged me 1,000 after a serpentine belt, alternator, and pulley. Even with the other stuff added on, that is not another 1,300 dollars. Maybe 500-600 more. I'm just so mad at what Firestone did.
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