G35 Sedan 2WD V6-3.5L (VQ35DE) (2005)
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A/F Sensor voltage (see Figure 2).
4.
Hold the engine speed at about 2000 rpm no-load for 2 minutes.
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This will create a stable condition for step 5 (below).
5.
Observe A/F SEN1 (B1) and A/F SEN1 (B2) voltage for 30 seconds while holding 2000 rpm no-load.
a.
During most of this test the A/F sensor voltages should remain between 1.37 and 1.57 volts.
NOTE:
If the engine rpm is held constant voltage will fluctuate (change) but should remain in this range.
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If the A/F sensor voltages are out of this range for most of the test this bulletin does not apply. Go back to ASIST for further diagnostic and
repair information.
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If the A/F sensor voltages are OK proceed to step 6.
6.
Check the ECM Part Number on the printout you made in Step 1.
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Compare your vehicle's ECM P/N to those shown under Current ECM P/N in Chart A below:
Chart A
A.
If your vehicle's ECM P/N matches a P/N in the chart above:
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Go to Step B: ECM Reprogramming.
B.
If your vehicle's ECM P/N does not match a P/N in the chart above:
This bulletin does not apply. Go back to ASIST for further diagnostic and repair information.
Step B: ECM REPROGRAMMING