attila said:
yea im with you, i dont get it either,...
Swapping O2 Sensors
- Thread starter attila
- Start date
yea im with you, i dont get it either,...
attila
Full Access Member
I started the engine, just a couple of minutes, so far so good, can't wait for a test run
VENOMOUS1 RACING
Has Left the Room - Banned from VTCOA!
I was basically saying I think it's better to use the weatherpak connectors like factory due to a splice and solder involved will change the resitance in the wire a hair and throw the sensor off a lil. It may not throw a code but it may read incorrectly. Also, even though you have to splice and solder and it IS better than butt connectors or plastic connectors you still have a place for deterioration to set in even though heat shrink and soldered. If you are running an A/F meter make sure it is close to where it was before. The small change in resistance in the wire COULD, not WILL, make your truck run leaner or richer. Just my .02 and hopefully everything is great.
Beautiful wife by the way in the other thread!! Italian??
Beautiful wife by the way in the other thread!! Italian??
JeffBoyette
Full Access Member
VENOMOUS1 said:I was basically saying I think it's better to use the weatherpak connectors like factory due to a splice and solder involved will change the resitance in the wire a hair and throw the sensor off a lil. It may not throw a code but it may read incorrectly. Also, even though you have to splice and solder and it IS better than butt connectors or plastic connectors you still have a place for deterioration to set in even though heat shrink and soldered. If you are running an A/F meter make sure it is close to where it was before. The small change in resistance in the wire COULD, not WILL, make your truck run leaner or richer. Just my .02 and hopefully everything is great.
Beautiful wife by the way in the other thread!! Italian??
The resistance in the wire is greater than the resistance of a soldered connection. The soldered connection compared to the weather pack does not increase the total resistance of the circtuit. A soldered splice, shrinkwrapped water tight, is better than any connector. Solder is more corrosion resistant than the wire itself, so your wrong about it deteriorating.
O2 sensors produce a voltage, unlike other sensors that provide varying degrees of resistance. The output of the sensor is usually between 0 and 1.1 volts. At Stoich, it sends out a voltage greater than 0.45 volts. If the engine is running lean, the sensor voltage goes lower than 0.45 volts. Usually the output range seen seen is 0.2 to 0.7 volts.
The VERY minimal change of resistance in the soldered circuit WILL NOT and Cannot affect the output of the voltage producing Oxygen sensor.
After all, when all those wires reach the computer. ITS SOLDERED TO THE BOARD!
VENOMOUS1 RACING
Has Left the Room - Banned from VTCOA!
I am basing my statement on years of work as a mechanic and have seen many,many corroded solder joints as well as soldered connections that have broken due to getting BRITTLE by the heat of soldering. Yes they are soldered into the board, but the sensor is designed around that resistance and wire guage, I'd think! Could be wrong and love learning new things.
You are accurate on the sensor's voltage and how it works. I still use solder daily on things I add to a car or truck but as far as these sensors go I have never had good luck on splicing into them and started using the weatherpak connectors. To each his own.
You are accurate on the sensor's voltage and how it works. I still use solder daily on things I add to a car or truck but as far as these sensors go I have never had good luck on splicing into them and started using the weatherpak connectors. To each his own.
VENOMOUS1 said:I am basing my statement on years of work as a mechanic and have seen many,many corroded solder joints as well as soldered connections that have broken due to getting BRITTLE by the heat of soldering. Yes they are soldered into the board, but the sensor is designed around that resistance and wire guage, I'd think! Could be wrong and love learning new things.
You are accurate on the sensor's voltage and how it works. I still use solder daily on things I add to a car or truck but as far as these sensors go I have never had good luck on splicing into them and started using the weatherpak connectors. To each his own.
I totally agree...As I mentioned earlier I had real experience with soldered O2s...could not get the truck tuned right until I replaced it..
attila
Full Access Member
ok, I spliced, soldered, heat shrinked.... it works but now I'm scared
is there any way to find a couple of sensors with longer wires??
is there any way to find a couple of sensors with longer wires??
attila said:ok, I spliced, soldered, heat shrinked.... it works but now I'm scared
is there any way to find a couple of sensors with longer wires??
i couldnt find any
attila said:ok, I spliced, soldered, heat shrinked.... it works but now I'm scared
is there any way to find a couple of sensors with longer wires??
the set of mopar headers i got had extentions for them in with it,,if they are mopar headers then a stealership might have some :dontknow:
JeffBoyette
Full Access Member
TNVIPER said:
Well hell, learn something new everyday...if im right or you are right doesnt matter. If i need to fix my o2 sensor harness. I will be using weathertight connectors from now on. Why chance it. Soldering is a pain in the ass under a truck anyway.:congrats:
attila
Full Access Member
you have to remove them and to at the bench... I didn't take any pics, sorry but no CEL so far...
should I carry a small gas soldering iron and some wires in my truck tool case??
should I carry a small gas soldering iron and some wires in my truck tool case??
attila said:you have to remove them and to at the bench... I didn't take any pics, sorry but no CEL so far...
should I carry a small gas soldering iron and some wires in my truck tool case??
I never got a CEL with mine either. Truck for the most part seemed to run fine. Problem was uncovered when on the dyno tuning. Couldnt get a consistant reading.
The problem was the O2 sensors were fighting each other. The PCM uses the readings from the 2 sensors to balance out each bank of cylinders. The soldered sensor was giving a false reading which caused the PCM to overwork tryng to maintain a balance. The StarScan at my dealer was the first to give a clue as to where my problem was. It shows a graph of what the sensors are doing.
At first we didnt see the soldered place. Actually didnt notice it until we were replacing the sensors.
Maybe the solder was bad on mine but the Viper tech said he was taught by Chrysler never to cut the wires on the O2 sensors.
Hopefully Attila you will have no problem. You might let your dealer run a test on your O2s with the StarScan just to make sure all is well.
attila
Full Access Member
Thanks buddy, this makes sense
I'm waiting for a dual wideband gauge, I'll start with that
and... I'm curious to go to the Dodge Dealer in Milan, just to see their faces haha
ok, I want a couple of sensors with proper extension now
I couldn't wait to test the truck... so I spliced them
I'm waiting for a dual wideband gauge, I'll start with that
and... I'm curious to go to the Dodge Dealer in Milan, just to see their faces haha
ok, I want a couple of sensors with proper extension now
I couldn't wait to test the truck... so I spliced them
VENOMOUS1 RACING
Has Left the Room - Banned from VTCOA!
What you need are extensions I was referring to. And as someone else mentioned they should have come with the headers. You can manufacture your own using a couple old O2s for the connector weatherpak ends and the same guage wire. I would check with Mopar Performance though and get the ones they have ready already!
attila
Full Access Member
my headers were used, come with all the stuff but the extensions...
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