This ECU reading from Check Engine Light.

[JeffersLos]

The check engine light has been coming on and off, so we got an ECU reading at a mechanics.

 

 

Apparently it is the knock sensor, from their message. 

 

Any comments, recommendations etc welcome. 

[stubuzz]

Ask them to read the freeze frame data and post a screen shot of it.

[JeffersLos]

They said they need to investigate why the knock sensor is bad, and it would take 1-2 days to do this. 

 

They look cheap online, less than 1000THB. 

[JeffersLos]

They reported that a new knock sensor is around 3xxx THB. 

[stubuzz]

2 minutes ago, JeffersLos said:

They reported that a new knock sensor is around 3xxx THB. 

What car?

 

[JeffersLos]

I guess it isn't an emergency fix or die situation, like faulty brakes, and a faulty knock sensor will be okay to drive for a while as we research it. 

[Toby1947]

Cheap job even with genuine parts. Don't buy online almost certain to be cheaper fakes especially in the Land of Scams.

[Brahmz]

Google this...

 

P0238 KS1 circuit

 

Boost pressure circuit.

[In the jungle]

31 minutes ago, Brahmz said:

Google this...

 

P0238 KS1 circuit

 

Boost pressure circuit.

 

Erm, it's PO328.

[HauptmannUK]

I assume this is a Mazda 2 or 3. They go bad frequently and we replace a lot in the UK.

Resistance of the sensor should be 550kohm +/- 30k.  If its high (usually they go over 1Mohm) replace with a genuine Mazda part. The sensor is under the inlet manifold IIRC, so need to remove inlet to replace.