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Shearer Offline
#1 Posted : Tuesday, 1 September 2020 6:28:24 PM(UTC)

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My best mate has an VZ 175 Alloytec which overall is a maintained and unmolested condition.

It continuously has a 'Check Powerchain' warning and 'Reduced Vehicle Performance' I use a program called Software on ELM Street to read the codes:

P0332: Knock Sensor Circuit Low Frequency Bank 2 -This code is continuously on

The following codes are random; occasionally come on when floor the throttle. Sometime it comes on, sometimes in doesn't

P0121: Throttle Position Sensor Circuit Insufficient Activity
P0221: Throttle Position Sensor 2 Circuit Range/Performance
P2101: Throttle Actuator Control Position Performance

What could be causing these codes?
Dr Terry Offline
#2 Posted : Wednesday, 2 September 2020 7:56:34 AM(UTC)
Dr Terry

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It looks like it will need a new knock sensor on bank 2 & a new throttle body.

Send me a PM for costs.

Dr Terry
If at first you don't succeed, just call it Version 1.0
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