Air/fuel gauge
#2
*** i love duct tape
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dDub told me this last night:
On the gauge run the power wire for the light and the power wire for the gauge into 1 single wire.
Run the ground wire from the light and the ground wire for the gauge itself into 1 wire as well.
Tap the single power wire you now have into a switched 12v source, a good and easy one would be the power wire for the cigarette lighter and it is easy to get to.
Ground the single ground wire you now have into any good ground, an easy one is the mounting plate for the shifter under the surround and all that junk.
Run the purple (I believe that's what the autometer one is) wire for the O2 sensor source out through a gromet in the firewall, I found enough to use on the passenger side where the AC evaporator has its runoff tube go through. Then tap that into the O2 sensor wire running from the O2 sensor to the harness.
You're done.
On the gauge run the power wire for the light and the power wire for the gauge into 1 single wire.
Run the ground wire from the light and the ground wire for the gauge itself into 1 wire as well.
Tap the single power wire you now have into a switched 12v source, a good and easy one would be the power wire for the cigarette lighter and it is easy to get to.
Ground the single ground wire you now have into any good ground, an easy one is the mounting plate for the shifter under the surround and all that junk.
Run the purple (I believe that's what the autometer one is) wire for the O2 sensor source out through a gromet in the firewall, I found enough to use on the passenger side where the AC evaporator has its runoff tube go through. Then tap that into the O2 sensor wire running from the O2 sensor to the harness.
You're done.
#3
I'm a boost creep...
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Don't connect the signal wire at the sensor, you will most likely regret it. Connect it at the ECU, where you can also get switched power and ground (refer to the FSM wiring diagram). The cigarette lighter is the easiest place to tap into an illumination wire.
#4
whilst on this subject - mine came with an o2 sensor for the exhaust
should i get that welded into the exhaust or use the on thats already in there ??
and mine only had 3 wires - red / black / purple
would the stock 02 sensor give out the correct reading for the a/f unit - or is that why it came with its own ??
and why would we regret tapping into the 02 unit on the exhaust ?
Ta
Stu
should i get that welded into the exhaust or use the on thats already in there ??
and mine only had 3 wires - red / black / purple
would the stock 02 sensor give out the correct reading for the a/f unit - or is that why it came with its own ??
and why would we regret tapping into the 02 unit on the exhaust ?
Ta
Stu
#5
right then the O2 sensor is located on plug 2C on the ECU
and it says
IDLE : Below 1.0v
ACCELERATION : 0.5v - 1.0v
DECELERATION - 0v - 0.4v
so unless im missing something - how does that tell you if you are running rich or not ?
and it says
IDLE : Below 1.0v
ACCELERATION : 0.5v - 1.0v
DECELERATION - 0v - 0.4v
so unless im missing something - how does that tell you if you are running rich or not ?
#6
I'm a boost creep...
Join Date: Jan 2002
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Originally Posted by grinder
whilst on this subject - mine came with an o2 sensor for the exhaust
should i get that welded into the exhaust or use the on thats already in there ??
should i get that welded into the exhaust or use the on thats already in there ??
and mine only had 3 wires - red / black / purple
would the stock 02 sensor give out the correct reading for the a/f unit - or is that why it came with its own ?
and why would we regret tapping into the 02 unit on the exhaust ?
IDLE : Below 1.0v
ACCELERATION : 0.5v - 1.0v
DECELERATION - 0v - 0.4v
so unless im missing something - how does that tell you if you are running rich or not ?
ACCELERATION : 0.5v - 1.0v
DECELERATION - 0v - 0.4v
so unless im missing something - how does that tell you if you are running rich or not ?
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#13
ah right ! - thanks for that !
and we can tell which is which as they are all different sizes !!
superb - another project for when i get the car on the road again
thanks for all your help
stu
and we can tell which is which as they are all different sizes !!
superb - another project for when i get the car on the road again
thanks for all your help
stu
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