reflash= error code

Questions / support for the K-Series ECU re-flash
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mcheetah
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Joined: Fri Jul 03, 2009 8:43 pm

reflash= error code

Post by mcheetah »

i recently installed the k-series reflash and had the error code P0420: catalyst system efficiency below threshhold pop up
i also discovered that my car is running rich by checking the spark plugs and i know that 02-04 rsx already do run rich but i dont think this is supposed to set off an error code.
so my question is how can i correct this or is this expected?

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Spunkster
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Post by Spunkster »

What vehiclele is this and what has been done to the car?

mcheetah
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Joined: Fri Jul 03, 2009 8:43 pm

Post by mcheetah »

i have an 2004 rsx type s with a cai
i reset the code and so far it hasnt popped up under normal driving conditions so im thinking that its only triggered in higher rpms maybe around the new vtec point

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Spunkster
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Post by Spunkster »

So you cleared the code adn it has not come back?

mcheetah
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Post by mcheetah »

i cleared the code and it came back today during normal driving conditions

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Spunkster
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Post by Spunkster »

The next step is to follow the troubleshooting steps in the Helms manual for that specific error code.

mcheetah
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Joined: Fri Jul 03, 2009 8:43 pm

Post by mcheetah »

I looked up what to do under a P0420 code in the helms manual but you need the scan tool to do the check and I dont have one
but when i took my car to my mechanic he said the code is most likely caused by the car running too rich.

mcheetah
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Joined: Fri Jul 03, 2009 8:43 pm

Post by mcheetah »

is it possible that the stock exhaust is too restrictive and setting off the error code?

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