At 07:50 AM 11/10/99 PST, you wrote:
>Thanks for the info Bob. I read in an earlier e-mail that
>the performance computer and towing don't go hand in hand
>(detonation!!!). I tow a 20ft bass boat, will I need to change
the computer out every time I go to the lake? Also, just 2 days
>ago my engine started surging at idle. I replaced spark plugs
>& wires (no help). Could this be a sensor (possibly O2). What
>do you think!
Yup, MP does not recommend that you tow with their hipo computer
...guess that the advance timing and extra load on the engine
from towing will definitely cause detonation. Swap the stock
one in when towing ... only 3 screws hold the computer to a
bracket and 3 connectors to unplug/plug to the computer...
be sure to remove the battery cable to the neg. post before
doing the swap.
The rpm surge is a common 'no fault' driveability problem
associated with a faulty Throttle Position Sensor. At idle,
engine speed will increase about 400 rpm for no apparent reason
at normal operating temp. Surging may also occur under normal
driving conditions where speed will increase and then slow down
without changing throttle position. Other malfunctioning sensors
(MAP and O2) may also give similar symptoms.
I'd start with a check on the TPS first.
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:19:10 EDT