[ike84]

Ike -

how does a pinhole at the bung weld influence the 02 sensor reading? that is something ive not encountered before. since the exhaust is positive pressure, i would think that the exhaust would not intermix with atmospheric pressure and instead you would just have a bit more exhaust gas pressure moving past them senosr.

for the maf sensor testing, i have a few questions. you said that the voltages should parallel each other in change. but what is the differenece between them? MAF>TPS or TPS>MAF? Also, the the absolute value difference between the two of importance? you mentioned biasing so I'm assuming that means that the gap is either too large or too small. I've never seen OEM descriptions or specs of these voltage readouts so I guess it may just be from experience? lastly, does this hold true on other vehicle makes as well that use this type of intake setup (the parallel between maf and TPS sensor voltage)?

btw, this is a good discussion! youre a smart guy blue and I appreciate the back and forth and your experience/insight with all this.

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