Oxygen Sensor question

Holden/Delco Tuning. ALDL, OBD 1.5. Circa 1989 to 2004.
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Re: Oxygen Sensor question

Postby delcowizzid » Wed Apr 15, 2015 4:51 pm

no 02's and no cats on vn's here hsv spark map too if i remember right
If Its Got Gas Or Ass Count Me In.if it cant be fixed with a hammer you have an electrical problem

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Re: Oxygen Sensor question

Postby Dylan » Wed Apr 15, 2015 8:20 pm

Im going to be doing some logging on a race car with an 808 and V6 soon.
Any good ideas where to fit the signal earth for my wide band?
Heater ground could go to the battery along with the positive for the heater?

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Re: Oxygen Sensor question

Postby VL400 » Wed Apr 15, 2015 10:47 pm

Signal earth to the ECU earth, D6 would be fine for that. Heater earth to battery or chassis somewhere. Could even use one of the other noisy ECU earth connections for the heater.

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Re: Oxygen Sensor question

Postby Holden202T » Thu Apr 16, 2015 7:49 am

yeah that's what I did with mine on the ecotec 808 loom, heater ground to closest earth, then positive from the coil pack power, and the two sensor wires to the ecm as stated above.

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Re: Oxygen Sensor question

Postby Dylan » Thu Apr 16, 2015 12:06 pm

Sounds like a good set up, signal wire and signal earth to ecu should get some good readings.

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Re: Oxygen Sensor question

Postby Holden202T » Thu Apr 16, 2015 12:10 pm

yeah I had a wideband in the car for tuning, but I always saw good cross counts when logging it!

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Re: Oxygen Sensor question

Postby shifty6 » Thu Apr 16, 2015 5:35 pm

Off topic, but another question regarding using a VR loom with 808. VR diagram shows the negative of 4 injectors going to C15, with the other 4 going to C16 separately? VN diagram shows the injector negatives joined before the ECU but still going to two different ecu pins. Do I need to join the two negative wires together or is it done internally by the ECU anyway?

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Re: Oxygen Sensor question

Postby shifty6 » Thu Apr 16, 2015 5:52 pm

Does the 808 fire 4 injectors at a time or just pump all 8 at once? My old Vn loom seems to have all injector negatives joined together in the loom.

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Re: Oxygen Sensor question

Postby Dylan » Thu Apr 16, 2015 6:20 pm

Fires 8 at once.

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Re: Oxygen Sensor question

Postby shifty6 » Thu Apr 16, 2015 6:59 pm

Dylan wrote:Fires 8 at once.

Thanks

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