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  1. #1
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    0 out of 1 members liked this post. Yes Reputation No

    30FF With Passengers

    Maybe it's purely coincidental but I have done a couple of third gear pulls with a 275 lb. passenger and three 200 lb. passengers in the car and both times the car threw a 2AAF code. I have done 3 pulls with no passengers and no codes were thrown at all.

    Do you think this it's possible that the extra weight could be causing an under boost code? My wastegate rattle is getting worse so I was suspecting that it was time to get them replaced but no issues seem to be present when it's only me in the car.
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    PTF Tuned Cobb Stage 2+ | H&R / Koni Sport | BBS LM

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    isn't 2AAF a plausibility code relating to the LPFP? unrelated and not much cause for concern.

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    Click here to enlarge Originally Posted by themyst Click here to enlarge
    isn't 2AAF a plausibility code relating to the LPFP? unrelated and not much cause for concern.
    I'm sorry. Brain fart this morning. It was a 30FF.
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    @Sticky can you please edit to replace 2AAF with 30FF?

    Thanks!
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    PTF Tuned Cobb Stage 2+ | H&R / Koni Sport | BBS LM

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    Did you log those runs? more weight means more load but still weird hehe
    SOLD --'07 E90 335i, PTF COBB E50, HFS4, ER CP, ETS 7", AA DP, Vishnu Exhaust, DCI, ACT, Nitto Nt555

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    Click here to enlarge Originally Posted by marv85 Click here to enlarge
    Did you log those runs? more weight means more load but still weird hehe
    I logged two runs after the fact where I didn't get a code.
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    adding 300 lbs puts more load on the car and is also accelerating slower causing any small boostt leak to be detected by the DME. I'd smoke test the car to start.

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    Click here to enlarge Originally Posted by themyst Click here to enlarge
    adding 300 lbs puts more load on the car and is also accelerating slower causing any small boostt leak to be detected by the DME. I'd smoke test the car to start.
    Thanks for confirming my suspicion. I'm hitting around 18 psi so boost seems to be normal with just me in the car.
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    PTF Tuned Cobb Stage 2+ | H&R / Koni Sport | BBS LM

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    Click here to enlarge Originally Posted by JStang Click here to enlarge
    Thanks for confirming my suspicion. I'm hitting around 18 psi so boost seems to be normal with just me in the car.
    try logging a third gear run since it puts more load. IF that's would you do, then do 4th gear run which puts even more load (assuming you can safely do it) and see what happens.

    As themyst said, it could be a small leak. It can also be on the boost control side...
    SOLD --'07 E90 335i, PTF COBB E50, HFS4, ER CP, ETS 7", AA DP, Vishnu Exhaust, DCI, ACT, Nitto Nt555

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    Click here to enlarge Originally Posted by marv85 Click here to enlarge
    try logging a third gear run since it puts more load. IF that's would you do, then do 4th gear run which puts even more load (assuming you can safely do it) and see what happens.

    As themyst said, it could be a small leak. It can also be on the boost control side...
    I do my logs in 3rd and there were no codes thrown with just me in the car. 4th is too much of a risk on public roads. The 5-0 sees that an my car and license are going bye bye for a while.
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    It’s likely your mapping just needs to be changed slightly for the hotter weather (greater DC per boost) and longer time in gear (added weight). Contact PTF, if there’s no leak.

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    Click here to enlarge Originally Posted by JoshBoody Click here to enlarge
    It’s likely your mapping just needs to be changed slightly for the hotter weather (greater DC per boost) and longer time in gear (added weight). Contact PTF, if there’s no leak.
    Also a thought of mine. This map is pulling some timing up top where in the "winter" there were 0 corrections. Jake did my map in January so it was in the 70's. I will send the logs to Jake this evening to see what he thinks.
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    Click here to enlarge Originally Posted by JStang Click here to enlarge
    @Sticky can you please edit to replace 2AAF with 30FF?

    Thanks!
    done

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    Just out of curiosity did you happen to change MAPs when the code was thrown? I noticed when i switch to S1+ Agg. I consistently (which means only when driving from S1+ Drive or from my Protune) got a 30FF code in the first couple pulls. Once the car adapted never seen the code again. Just would like to think its due to sensitive waste gates?? New WGs now never seen the code since.

    EDIT:

    each time the code was thrown was Post Shift into 4th; immediately.
    Last edited by VNeBLOB42; 04-22-2013 at 04:06 PM.
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    I haven't noticed that to be the case. The only times it has happened was with added weight.
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    Click here to enlarge Originally Posted by JStang Click here to enlarge
    I do my logs in 3rd and there were no codes thrown with just me in the car. 4th is too much of a risk on public roads. The 5-0 sees that an my car and license are going bye bye for a while.
    +1

    Ive logged 4th gear only one time. Sketchy as hell unless you have someone else with you... Hard to focus on the road, computer, clutch, break, steering, other cars, and the police at the same time at 150 mph lol

    I wouldnt be surprised if all that added load caused a pre-existing boost leak to be relevent and 'pop'.
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    Maybe but now that I'm hitting 18 psi I think all is well. I think that JoshBoody may have nailed it here.
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    Extra weight is definitely extra load and will change a lot of the mapping. My best advice is to tune for what the car is used for the majority of the time. If it's common for you to have a lot of weight or passengers, maybe make a second tune to flash for those occurrences. If you look at companies that do truck tuning, you'll always see a different map for towing... same principal.
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    Click here to enlarge Originally Posted by Josh@Cobb Click here to enlarge
    Extra weight is definitely extra load and will change a lot of the mapping. My best advice is to tune for what the car is used for the majority of the time. If it's common for you to have a lot of weight or passengers, maybe make a second tune to flash for those occurrences. If you look at companies that do truck tuning, you'll always see a different map for towing... same principal.
    Now I'm curious, but which car was the OTS maps made from? 335i or 535i?

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    Click here to enlarge Originally Posted by RnmEvo9 Click here to enlarge
    Now I'm curious, but which car was the OTS maps made from? 335i or 535i?
    We tested on everything from a 135i to a 535xi. The OTS maps are made to work well with as many situations as possible, but we're talking about an extra 900lbs here. There are sometimes cases that fall outside of what the OTS will work well for... that where ATR or a ProTuner can come into the mix. That's also why there's headroom and a ProTune will make additional power when designed for a specific car with specific requirements (available fuel, altitude, temperature,etc).
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  21. #21
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    dude... you got some large friends
    2007 335i (100% stock with mods)

    N54 is not a German 2JZ lol

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    Yeah we are all your typical 6'0 200 lb. jocks. On the other hand, My fiancee's brother in law is about 6'3 275-300 lbs. big dude!
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    Click here to enlarge Originally Posted by Josh@Cobb Click here to enlarge
    Extra weight is definitely extra load and will change a lot of the mapping. My best advice is to tune for what the car is used for the majority of the time. If it's common for you to have a lot of weight or passengers, maybe make a second tune to flash for those occurrences. If you look at companies that do truck tuning, you'll always see a different map for towing... same principal.
    Thanks for the input. I don't get on it with other people in the car unless they ask for it. When Jake did my PTF 2+ map it was just the two of us in the car.
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    PTF Tuned Cobb Stage 2+ | H&R / Koni Sport | BBS LM

  24. #24
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    It's a boost control / duty cycle tuning issue. Not sure what the easiest way to fix it is via Cobb only. Perhaps allowing the PID more authority range to add duty cycle.
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    Hmm I have an e93.. never had that issue LOL just raced a g37 with me and 3 passengers. 170 and 90 and 110lbs... and pulled his ass
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