[iqraceworks]

So I finally got the water pump replaced on my "new to me" 07 335i. The water pump was out when I bought it, so this is the first time I've actually gotten it out on the road. The car fires up and idles great...but....

The first thing I noticed was that the car is really low on power...feel like it's got around 200hp..if that. Then I got the Check Engine symble when I got on the gas pretty hard....

I got back to the house and scanned it with MHD and I'm getting this code....30FF - Boost pressure low. I've been researching that...I know where to start troubleshooting that code.

BUT..I also got some other weird things that came up with I scanned it.

Catalyst: Incomplete
Heated Catalyst: Not available
Evaporative System: Incomplete
Secondary Air System: Not available
A/C refrigerant: Not available
Oxygen Sensor: Incomplete
EGR system: Incomplete

As far as I can tell, the car is 100% stock, with the full stock exhast system.

Why am I getting all of these strange "readiness" codes??

Thanks!!

[Silkyg]

Originally Posted by iqraceworks

So I finally got the water pump replaced on my "new to me" 07 335i. The water pump was out when I bought it, so this is the first time I've actually gotten it out on the road. The car fires up and idles great...but....

The first thing I noticed was that the car is really low on power...feel like it's got around 200hp..if that. Then I got the Check Engine symble when I got on the gas pretty hard....

I got back to the house and scanned it with MHD and I'm getting this code....30FF - Boost pressure low. I've been researching that...I know where to start troubleshooting that code.

BUT..I also got some other weird things that came up with I scanned it.

Catalyst: Incomplete
Heated Catalyst: Not available
Evaporative System: Incomplete
Secondary Air System: Not available
A/C refrigerant: Not available
Oxygen Sensor: Incomplete
EGR system: Incomplete

As far as I can tell, the car is 100% stock, with the full stock exhast system.

Why am I getting all of these strange "readiness" codes??

Thanks!!

Check your charge pipe and intercooler connections. Does it look like it's ever been modded before?

[iqraceworks]

Originally Posted by Silkyg

Check your charge pipe and intercooler connections. Does it look like it's ever been modded before?

As far as I can tell everything is stock...but who knows. I know the stock catted downpipes are still on the car....but maybe the secondary cat was deleted?? I need to get under there and check. I know the chargepipe or intercooler leaks would cause the low boost code....but would it cause all of those 02 sensor and other "readiness" codes?

[opjose]

Your codes have been reset.

All of the incomplete codes mean the system has not seen a full drive cycle, or that the module has not reported results.

That is in addition to your boost pressure leak.

[iqraceworks]

Originally Posted by opjose

Your codes have been reset.

All of the incomplete codes mean the system has not seen a full drive cycle, or that the module has not reported results.

That is in addition to your boost pressure leak.

Good news! So basically everything is fine....I just need to drive the car in order to give it time to read everything?

As far as the low boost......going to start troubleshooting that tonight. I'm hoping it's something easy like a cracked chargepipe and/or leaking vacuum lines.

[matamua]

Originally Posted by iqraceworks

Good news! So basically everything is fine....I just need to drive the car in order to give it time to read everything?

As far as the low boost......going to start troubleshooting that tonight. I'm hoping it's something easy like a cracked chargepipe and/or leaking vacuum lines.

Not necessarily good news...it means codes were recently reset. Potentially because there was a problem the last owner tried to fix or hide. May be fine. May not be fine. You'll have to complete the cycle and run codes again.

[iqraceworks]

Well I fixed the low boost code. Fmic pipes were lose. I also replaced the boost solenoids.....and bms dci, chargepipe, bov, and downpipes. Makes 17psi boost now without and codes....

[Nikkitta]

Originally Posted by opjose

Your codes have been reset.

All of the incomplete codes mean the system has not seen a full drive cycle, or that the module has not reported results.

That is in addition to your boost pressure leak.

+1

[matamua]

Originally Posted by iqraceworks

Well I fixed the low boost code. Fmic pipes were lose. I also replaced the boost solenoids.....and bms dci, chargepipe, bov, and downpipes. Makes 17psi boost now without and codes....

That's great. How far have you driven?

[iqraceworks]

Originally Posted by matamua

That's great. How far have you driven?

Around 40 miles so far.