Few Questions

[GothicKidd]

Engine Light:
Since getting engine replaced had the yellow light coming on. Cruising the other day kept showing and going away. Did error check and got code 13, Is there ANYWAY of a faulty oil pressure switch to record code 13? I believe I have a faulty switch.. It's also leaking around it.

Diff:
It has excessive 'clearance'. What would be the best to do,
Get a replacement Diff
Get it fixed.

Tacho:
I trimmed the needle and now after I turn the car off, it stays at 1000RPM.. Though it resets it self as soon as I turn the key to ignition.
would I just to resit the needle.. or doesn't it have the weight to go back down?
Works fine when the cars running..

Seatbelts:
I might of had a misunderstanding. but Ive read wreckers cant sell you them? true/ false?

Cheers

[truckinjames]

i work at a wreckers and they can sell them if undamaged

[seq4x4]

Wreckers can sell you seat belts. As i found out, working or not...

As for your code 13..

If V6:
DTC 13:
RIGHT HAND (RH) NO OXYGEN SENSOR SIGNAL

The exhaust oxygen sensor is mounted in the exhaust pipe with the sensing portion exposed to exhaust gases. After the sensor is hot (360 degrees C), it becomes a voltage generator, producing a "changing" voltage. This voltage ranges from approximately 100 millivolts with a "lean" exhaust, to 900 millivolts with a "rich" exhaust. When the sensor is cold (below 360 degrees C) it acts like an open circuit and produces almost no voltage. The PCM supplies a very small "bias" voltage between terminals D13 and D14, normally about 450 millivolts. If measured with the 10 megohm digital voltmeter, it may measure as low as 350 millivolts. When the sensor is hot, it's output overshadows this PCM supplied voltage.

When the fuel system is correctly operating in the closed-loop mode, the sensor output is changing several times per second, going above and below a mid-point range of 490-500 millivolts at a hot idle. The PCM compares the voltage between the sensor signal and sensor earth terminals and decides the needed fuel mixture correction. The PCM also monitors the changing voltage, watching for transitions above and below the mid-point range, to decide when to operate in the closed-loop mode. An open circuit, defective, or contaminated sensor could cause the voltage to stay within a 410-477 millivolt band too long, keeping the system in open-loop and setting a DTC 13.

DTC 13 will set if no DTC 19, DTC 21 or DTC 22 is active and all conditions exist for 26 seconds:
Engine has been running for at least 4 minutes and 10 seconds, and...
Engine coolant temperature is more than 85 degrees C, and
Throttle Position (TP) sensor voltage indicates the throttle is open more than 15% and RH O2 sensor voltage stays between 410-477 millivolts.

*When DTC 13 is active (MIL) ("Check Powertrain" lamp "ON"), the PCM will operate the fuel system in the open-loop mode.

If V8:
NO OXYGEN SENSOR SIGNAL

The exhaust oxygen sensor is mounted in the exhaust pipe with the sensing portion exposed to exhaust gases. After the sensor is hot (360 degrees C), it becomes a voltage generator, producing a "changing" voltage. This voltage ranges from approximately 100 millivolts with a "lean" exhaust, to 900 millivolts with a "rich" exhaust. When the sensor is cold (below 360 degrees C), it acts like an open circuit and produces almost no voltage. The PCM supplies a very small "bias" voltage between terminals C13 and C14, normally about 450 millivolts. If measured with the 10 megohm digital voltmeter, it may measure as low as 350 millivolts. When the sensor is hot, it's output overshadows this PCM supplied voltage.

When the fuel system is correctly operating in the closed-loop mode, the sensor output is changing several times per second, going above and below a mid-point range of 390-430 millivolts. The PCM compares the voltage between the sensor signal and sensor earth terminals and decides the needed fuel mixture correction. The PCM also monitors the changing voltage, watching for transitions above and below the mid-point range, to decide when to operate in the closed-loop mode. An open circuit, defective, or contaminated sensor could cause the voltage to stay within a 347-550 millivolt band too long, keeping the system in open-loop and setting a DTC 13.

DTC 13 will set if no DTC 21 or DTC 22 is active and all conditions exist for 20 seconds:
Engine has been running for at least 2 minutes, and
Engine coolant temperature is more than 85 degrees C, and
Throttle Position (TP) sensor voltage indicates the throttle is open more than 6%, and O2 sensor voltage stays between 347 - 550 millivolts.
*When DTC 13 is active (MIL) ("Check Powertrain" lamp "ON"), the PCM will operate the fuel system in the open-loop mode.

Test Description: Number(s) below refer to circled number(s) on the diagnostic chart.
2. The Tech 1 "Scan" tool allows you to read the same oxygen sensor voltage the PCM is using for its calculations.
3. This step simulates a lean exhaust indication to the PCM. If the PCM and wiring are OK, the PCM will see the lean indication and the Tech 1 "Scan" tool should display O2 voltage below 200 mV.

[hako]

As above - o2 sensor probably has not been re-connected.
Re diff, cheaper and quicker to get one off a wreck unless you are intending on giving a lot of action....it costs $$$$ for overhaul however.
Re oil pressure switch leaking, will not set a code but they can suddenly start leaking bad and leave you with a no oil situation = blown engine....it probably got knocked during changeover of engines.
Re tacho, I'd leave it as-is....if it indicates correct revs when running I'd quit whilst I'm ahead.
Good Luck.

[Brett_jjj]

You can pick up a brand new genuine holden oil pressure sensor for the ecotec V6, for around $25 from your local holden dealer. I replaced mine not too long ago as it was leaking oil out from around it, and it also looked to be leaking through the switch also. The switch was still working fine though.