[Mike@N54Tuning.com]

Originally Posted by JBiddy

this was the first time i over boosted...... but what do you think about the low "police siren" noise coming from the turbos now... it start around 2500 rpm...

30FE doesn't mean you "over boosted" e.g. ran way too much boost. It means you had excessive throttle closure. Your boost was over target. Maybe that target was 2psi and you ran 3psi, for example. The freeze frame data is CRITICAL in any analysis...

Mike

[JBiddy]

Originally Posted by scottp999

There is a completley normal level of whistling noise that happens around that rpm when you come from a vacuum stage and get down to -5, -4, vacuum and proceed to transition to boost. It's normal. The police siren is extremley audible.

Did you listen to the police siren video? It will happen even while reving the car while it's parked.

yeah i did and it sounds just like that one.... i know the difference between turbo spool... idk what it can be
sounds like this

[JBiddy]

Originally Posted by Mike@N54Tuning.com

30FE doesn't mean you "over boosted" e.g. ran way too much boost. It means you had excessive throttle closure. Your boost was over target. Maybe that target was 2psi and you ran 3psi, for example. The freeze frame data is CRITICAL in any analysis...

Mike

ok... well i cleared all the codes... and they havent been back...well see what happends...

what do you think about the "police siren" noise??

thanks,
jonathan

[bulldog_yyc]

Originally Posted by Mike@N54Tuning.com

30FE doesn't mean you "over boosted" e.g. ran way too much boost. It means you had excessive throttle closure. Your boost was over target. Maybe that target was 2psi and you ran 3psi, for example. The freeze frame data is CRITICAL in any analysis...

Mike

Isn't this the definition of overboost - it was over a particular target, either set by the DME or "set" by the JB3

[Mike@N54Tuning.com]

Originally Posted by turkish335

Isn't this the definition of overboost - it was over a particular target, either set by the DME or "set" by the JB3

When people refer to "over boosting" I get this visual of running 18psi instead of 15psi. Not running 3psi instead of 1.5psi. But either can trigger a 30FE code.

Mike

[Fsarc]

Funny I had the same exact thing happen the other day. I was getting on the highway starting to accelerate and the car went into limp mode. I pulled over, restarted the car and it ran fine. Ran a BT scan and saw the 30FE code.

Running 2.0 2/17 firmware Map 5 with 93 octane and DCI. First issue I've had. Maybe some bad 93 octane in the north Jersey area? I usually fill up with Shell V Power, but when this happened it was on Citgo 93.

Also had a 3100 code, but from what I understand that is always present after a limp mode. No other codes were present.

Here is my freeze frame data: Any thoughts?

30FE:
30FE Exhaust fume turbo charger, high pressure side
Error will not cause a warning light
Error is not currently present
Test conditions have been completed

Freeze Frame Information
Event 1
Odometer 38304kms 23801miles
ambient pressure 997.66 hPa
ambient temperature 7.50 °C
pressure in front of throttle valve 128.00 kPa
speed 3,456.00 rpm

[Mike@N54Tuning.com]

Originally Posted by Fsarc

Funny I had the same exact thing happen the other day. I was getting on the highway starting to accelerate and the car went into limp mode. I pulled over, restarted the car and it ran fine. Ran a BT scan and saw the 30FE code.

Running 2.0 2/17 firmware Map 5 with 93 octane and DCI. First issue I've had. Maybe some bad 93 octane in the north Jersey area? I usually fill up with Shell V Power, but when this happened it was on Citgo 93.

Also had a 3100 code, but from what I understand that is always present after a limp mode. No other codes were present.

Here is my freeze frame data: Any thoughts?

30FE:
30FE Exhaust fume turbo charger, high pressure side
Error will not cause a warning light
Error is not currently present
Test conditions have been completed

Freeze Frame Information
Event 1
Odometer 38304kms 23801miles
ambient pressure 997.66 hPa
ambient temperature 7.50 °C
pressure in front of throttle valve 128.00 kPa
speed 3,456.00 rpm

Update to the latest firmware first. Then if it continues contact BMS for advice. 30FE is not related to octane/gas. Just various tuning settings.

Mike

[Fsarc]

Thnaks Mike. From the freeze frame data does it look like I ran a really high boost or anything potentially troubling?

[Mike@N54Tuning.com]

Originally Posted by Fsarc

Thnaks Mike. From the freeze frame data does it look like I ran a really high boost or anything potentially troubling?

Just a few PSI. False alarm for sure.

Mike

[Jeff@TopGearSolutions]

Originally Posted by JBiddy

ok... well i cleared all the codes... and they havent been back...well see what happends...

what do you think about the "police siren" noise??

thanks,
jonathan

If your car sounds anything like that your Turbo's are toast.

I ran map 7 with just a DCI on 93 octane, so you should be ok otherwise, however, since you have DP you should still be safe on map 7, so you could have just got bad gas.

However, if you cleared the codes and did some WOT you should be ok.

The overboost code is interesting however.

Call me if you have any more questions.

[JBiddy]

thanks bro