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Discussion Starter #1
XP850 -10 works well in the cold & warm. If you turn off the ATV warm and start again later so it'll be really uneven.

Fault code is not the meter.
Spark plugs replaced.

Where to look for problem?
 

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After your machine reaches operating temperature, Air passing through the intake is measured by the T-MAP and relayed to the ECU. These signals, comprised of separate air temperature and manifold absolute pressure readings, are processed by the ECU and compared to its programming for determining the fuel and ignition requirements during operation.

In my opinion it sounds like your TMAP needs cleaning or replacing. Some people have had the wires break going too the plug and cause problems too


12 850EPS
 
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