[Bali]

why I would all of the sudden not have communication with INPA?

Most likely the COM port that Windows assigned to the cable changed and you did not edit the config file accordingly. See this post.

How to Install BMW Standard Tools

This thread describes how I install and configure BMW Standard Tools, the suite of BMW software that includes INPA, NCS Expert, WinKFP, Tool32. I have my own custom way of doing this that is the shortest and simplest steps I could figure out. This set up is for E46 only. What is needed...

www.e46fanatics.com

 

[T_E46]

SO.... Slightly off topic I was driving my car the other night attempting another drive cycle i hit a huge jack rabbit, it broke my ambient air temp sensor completely off and the dash was reading -40. I replaced the sensor and its still reading -40 is there a recalibration sequence i need to do or something?

 

[bonestockE36]

Check wiring for the temp sensor. Drive cycles will not fix this, you need to find what's actually wrong. I know some states have to read the VIN, even if OBDII is working.

When you bought it did this car come from an emissions tested area? I'm wondering if some stuff was coded out to stop CEL. I don't have any ideas for no comms on the OBDII other than making sure all the pins are pushed in to the connector. I'd also reseat the DME connectors.

Two years ago I took the Odyssey for IL emissions they said they couldn't connect to the ECU. Passed me on no active CEL and said next time it would be a fail if they couldn't read it. I never did anything as I had no trouble reading OBDII. Last test was no trouble.

 

[T_E46]

Most likely the COM port that Windows assigned to the cable changed and you did not edit the config file accordingly. See this post.

How to Install BMW Standard Tools

This thread describes how I install and configure BMW Standard Tools, the suite of BMW software that includes INPA, NCS Expert, WinKFP, Tool32. I have my own custom way of doing this that is the shortest and simplest steps I could figure out. This set up is for E46 only. What is needed...

www.e46fanatics.com

Hey Bali so i followed your install instructions to the -T made sure my com port settings are set to 1 and everything and i still don't get the any communication in INPA.

 

[Bali]

still don't get the any communication in INPA

Maybe a bad cable?

 

[T_E46]

Question what tells the secondary air pump to run in the first place?

 

[T_E46]

@Bali i finally got my new cable in and inpa works great however when i go into win kfp to attempt the dme re-flash its as if there are not any files when i select update zusb in the ecu family and zusb columns there isnt any info.

 

[Bali]

@Bali i finally got my new cable in and inpa works great however when i go into win kfp to attempt the dme re-flash its as if there are not any files when i select update zusb in the ecu family and zusb columns there isnt any info.

You did not install the software correctly.

 

[T_E46]

You did not install the software correctly.

Alright so I was finally able to update the dme and my secondary air pump still does not turn on during cold start.

 

[kaboom28]

Alright so I was finally able to update the dme and my secondary air pump still does not turn on during cold start.

Have you fixed your ambient air temp sensor? As noted earlier, the SAP is supposed to come on with a cold start. The DME reads various sensors, including the ambient temp sensor to infer whether you're going through a cold start or not.

 

[T_E46]

Have you fixed your ambient air temp sensor? As noted earlier, the SAP is supposed to come on with a cold start. The DME reads various sensors, including the ambient temp sensor to infer whether you're going through a cold start or not.

yeah that has been fixed I checked temp readings before starting coolant temp sensor, ambient air temp, and inlet air temp sensor all said 51 degrees.

 

[T_E46]

how can I tell if my secondary air system has been coded out?

 

[Bali]

how can I tell if my secondary air system has been coded out?

You cannot code out secondary air system.
You can flash euro software to the DME that has no secondary air system support.
Most likely your SAP is not running because of some fault. What are the DME codes INPA shows?