sikky o2 simulator
#16
I think the instructions said to solder the wires, should I get the wires cut and connected normally then?
I'm also wondering what kind of voltage I should be seeing from the yellow wire as a reference point.
Thanks.
I'm also wondering what kind of voltage I should be seeing from the yellow wire as a reference point.
Thanks.
#17
Lexus Champion
iTrader: (5)
When I was 10 I loved to work on all kind of electronics, including wiring and circuit boards. Back then I used to do way better soldering jobs than the one above. Before continuing troubleshoooting your O2 simulator you should fix those connections, maybe you'll find the root of your problems right there.
#19
Tech Info Resource
iTrader: (2)
The solder wicks up the wire underneath the insulation and creates a stress point that cracks and breaks over time. Time depends on the wire gauge, number of strands, the amount of vibration, and the strain relief on the wire. All modern aircraft use crimped connections because they're more reliable and don't break wires under the insulation where you can't find the break. All the wire connections on the harness in any Toyota product are crimped - they used to crimp and solder the battery connections, now they don't even do that. 100% crimp because a proper crimp is more reliable.
I spent 5 years as a bench electronics technician in the Air Force. I've soldered millions of joints, and been to a couple of different soldering schools. If It were possible to do this right, I'd've learned it by now, but military aircraft designed and built after 1985 all have crimped connectors. The 135's I worked on all got completely rewired because they had soldered harnesses that got too expensive to maintain. Granted aircraft are extremely high vibration, but the OP is having issues right now, and if the connections were good crimps, I doubt he'd have a problem at all.
I spent 5 years as a bench electronics technician in the Air Force. I've soldered millions of joints, and been to a couple of different soldering schools. If It were possible to do this right, I'd've learned it by now, but military aircraft designed and built after 1985 all have crimped connectors. The 135's I worked on all got completely rewired because they had soldered harnesses that got too expensive to maintain. Granted aircraft are extremely high vibration, but the OP is having issues right now, and if the connections were good crimps, I doubt he'd have a problem at all.
Last edited by lobuxracer; 07-25-12 at 06:59 PM.
#21
Lobuxracer, what is your opinion on the wire tap solution from this manufacturer?
http://www.posi-lock.com/posiplug.html
http://www.posi-lock.com/posiplug.html
#22
Tech Info Resource
iTrader: (2)
Other than their rather large size, it looks to be a more advanced version of the Scotchlock vampire tap in blitz's picture. Without actually testing it, I can't say much of anything about it.
#23
I got the o2 simulator wired again, this time no solder. drove the car for a while and the CEL didn't go away, so I reset the ecu yesterday and just let it sit in the garage after I made the sure CEL was gone. This morning once I start the car CEL popped right back up. What are the expected Voltage behaviors when the car is running/not running?
#24
Tech Info Resource
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There is two trip logic on O2 sensor signal failure, so there is something else wrong. You should not see a CEL immediately for a secondary O2 sensor signal issue. I would be checking the heater circuits to make sure the sensors were not damaged on install. A failed heater circuit will definite trip the CEL instantly.
#26
Tech Info Resource
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#27
I don't really get the CEL instantly after a reset, I parked it overnight, which I assume the ecu does diagnostics while not running? Usually when I reset it, I get the code the next day regardless of how I drive. Putting the multimeter to 20v with the car running, I get .366 then it drops to 0, then .336, drop to 0 and repeat. I assume that's normal?
#28
Tech Info Resource
iTrader: (2)
I don't really get the CEL instantly after a reset, I parked it overnight, which I assume the ecu does diagnostics while not running? Usually when I reset it, I get the code the next day regardless of how I drive. Putting the multimeter to 20v with the car running, I get .366 then it drops to 0, then .336, drop to 0 and repeat. I assume that's normal?
#29
Basically I let did the ecu reset via the 2 fuses. Started the car and let it run for 2 mins on the driveway while I put the covers back on in the engine bay. Then I drove the car back into the garage and let it sit till this morning. This morning when I got in the start, I started it, and right after i disabled the traction control the CEL and check VSC came on again.
Should I check the heater circuit still? How do I go about doing that?
Should I check the heater circuit still? How do I go about doing that?
#30
Tech Info Resource
iTrader: (2)
Did you check the codes to be sure it's the O2 simulator causing the problem?