Quote:
Originally Posted by MIKESAD50
KansasT
I used this information from the manual that came with connect and cruise
"Mass Air Flow (MAF) Sensor
NOTE: It is critical that the MAF sensor is mounted per the
instructions below. Vehicle performance and/or driveability may be
affected if it is not mounted as recommended.
The Mass Air Flow Sensor must be installed in the induction system using
the supplied MAF sensor mounting boss. The induction system should
be 4 inches in diameter and have a minimum straight section 6 inches
in length. Mount the MAF sensor in the middle of the straight induction
section, ensuring that the middle of the mounting boss is at least
10 inches from the throttle body.
The MAF sensor must be oriented correctly in the induction
Be sure to weld the mounting boss correctly – the sensor will only
mount one way in the boss (see diagram).
Weld the boss in place before installing the sensor. When installed in
the vehicle, the MAF sensor should be mounted with the connector end
pointing between horizontal and fully upright – do not mount with the
connector oriented downward."
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That's the info I've seen too. When talking with the guy at tech support he suggested that the instructions are misleading. It really needs to be further away, because of the 90 degree elbows that are used on most swaps. He recommended the use of the GM air intake pipe (19301246), which uses a larger radius bend. Last I checked that pipe wasn't available, but it is pictured in the GM performance catalog. Another option would be to have a local tuner reprogram the ECM to correct for the MAF location.