DIY PGMFI Diagnostics - Code 13 Baro

Disclaimer: The following is provided as a GUIDE ONLY, and neither myself nor Ozhonda take any responsibility for the outcomes of someone else doing the following. You follow these steps at your own risk!


No part of this DIY is to be reproduced with out acknowledgment of the site and author it came from, ie me and ozhonda.com. Do not rip parts off and claim them as your own.



Baro sensor "Barometric" also known as PA "Pressure Air" Sensor. The Baro sensor is commonly located in the ECU, however on some pre OBD0 cars ( mainly A20A4 engines here in Ozland) its located under the glove box. The ECU uses the Baro to measure Altitude based on Air density to help calculate/correct fuel ratio.


Aim:

Diagnose code 13.

http://ecu-man.com/diy/pgmfi/mil/pgmfi-code-13.gif




Required:

Basic Testing

- Digital Multi Meter
- paper clip







Symptoms

For a faulty Baro sensor to trigger code 13, you will more than likely get the engine light come on and the car will go into limp mode, Limp mode is a preset fuel and ignition map running on a backup processor in the ECU. Limited to about 3500rpm and a rich mixture to protect the engine the engine will run, but not the best. Common cause for code 13 is a faulty Baro or open circuit in the wiring back to the ECU. If you have a modified ECU, the Baro could be enabled in the ROM but not present in the ECU.




Test



OBDI, OBDIIa, OBDIIb Baro is located in the ECU and is not a serviceable item. REPLACE ECU. ( or disable the BARO in the ROM if you have OBDI )


No part of this DIY is to be reproduced with out acknowledgment of the site and author it came from, ie me and ozhonda.com. Do not rip parts off and claim them as your own.

Disclaimer: The following is provided as a GUIDE ONLY, and neither myself nor Ozhonda take any responsibility for the outcomes of someone else doing the following. You follow these steps at your own risk!