Tuning
Products
HP Tuners
AEM
Mopac for filter
Purpose: Tune in all those nice modifications you work on along with a dyno. Increase fuel efficiency, full access to sensors and PIDs. Troubleshooting. More Power.
Time: n/a
From HP Tuners Direct
Price: $ cant
tell you that (Through Business Purchase)
Shipping: $ --
Duty: none
Brokerage: none
GST: none
TOTAL: $--CAN
From Mopac
Price: $223.22 Can
Shipping: n/a
Duty: none
Brokerage: none
GST: $11.16 Can
TOTAL: $234.38 CAN
Grand
TOTAL: $---.--
CAN
Contact: Bill Cole – Legend Mopac Man
In addition to the HP tuners and the AEM Wideband o2 Sensor, laptop, a readily available constant velocity capable dynamometer is a must. Just so happens we have all these items.
You may notice I opted for the Standard HP device. The only difference is the 4 aux inputs such as Fuel pressure or a wideband to directly be involved with scanning. There are more bits of data, better resolution, but I firmly believe sending the signal through the EGR or A/C Pressure switch through the ECM works just fine. (These are covered in the tuning section). Not covering the pricing for creation of the hobby box, wiring and laptop.
Let’s look at the
hardware:
Decided to create a mobile type unit with the AEM Wideband o2 gauge and bosch sensor.
It’s a Bosch LSU 4.2 12575657 986238 14 if you were curious. AEM pn 30-2001 for a replacement. These are called UEGO Sensor which stands for Universal Exhaust Gas Oxygen – Sensor, Also known as a linear o2 Sensor or Wideband o2 Sensor. These sensors actually measure oxygen amounts in the air unlike a narrowband, in most vehicles which only give a lean or rich condition, but not giving you an accurate whereabouts in the lean or rich area.
Here is my built easy to use Wideband o2 sensor module. This can make easy insertion to the front o2 bung of any car, which of course would require open loop and easy reading through the A/C Pressure switch, which happens to be a 5V sensor on the ECM, perfect for a wideband.
Notice the Lambda setup. - Important
Will not get into it that much, more on the tuning side of things, but using the Lambda instead of AFR (Air Fuel Ratio) means you are looking for stoich. Many gas stations now mix with ethanol, some are pure gasoline with 93 octane, etc. Do you really know the stoich of the gas in your tank? 14.68 with good 92 octane gasoline. 14.14 with E85 (ethanol blend). Tuning using AFR can be very misleading if you do not know. Tuning to Lambda is tuning for stoich for the fuel being used, the meter does not care which fuel, thus Lambda of 1.00 will be stoich for any fuel, just may have a different AFR value.
For PE (Power enrichment) tuning, it’s a bit more difficult as now you need to know your fuel stoich due to the multiplication of Lambda. Ie. Lambda = 0.89. If stoich of fuel is 14.68 then your AFR is = 13.07:1 Air Fuel Ratio. But if your stoich was 14.14 at lambda = 0.89 then your AFR is = 12.58:1. Once again, this is tuning discussion.
Back of the Hobby box that holds the AEM gauge and on/off switch
ANY Wideband MUST BE ON BEFORE ENGINE IS
RUNNING!
Failing to do so will destroy your wideband o2 Sensor.
THE CONNECTIONS:
- Is the six pin connector from the AEM gauge.
- A cigarette or 12V plug inside the vehicle – This provides power to the setup
- Pin connector to go to signal of the A/C or similar connector
The pin (3) is 15’ probe wire soldered to a male circuit panel pin connector. These are available at most electronic stores. It fits very tight and snug to the female connector on these OEM plugs in the harnesses.
These sensor wires can be neatly routed outside the door jam, under the front side of the hood to the o2 and A/C sensor plug without any issues.
For the LS6, and most A/C Pressure switches I have seen, connecting the signal wire to this pin allows you to feed the wideband signal through the ECM and then read through your scanning tool.
To verify, use a multi-meter as the other two will be a
ground and a +12V source. This just happens to be the
GET SCANNING!
End