CEL on my S/C'd TC

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Dec 19, 2005 | 03:31 PM

SuperWTC

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From: Brick, NJ

CEL on my S/C'd TC

I recenlty got a code PO420 (front O2) on my TC. I was driving normal, not beating on it and doing about 50mph. Any ideas what could have caused this?

Dec 19, 2005 | 04:00 PM

Simplyscion

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you rockin a header?

Dec 19, 2005 | 04:04 PM

Munch

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Quote:

Originally Posted by Simplyscion

you rockin a header?

That wouldn't throw the code for the front O2. A header throws a cat converter code. Unless the first O2 was damaged when the person took it out when they put the header in.

Dec 19, 2005 | 04:07 PM

Simplyscion

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Quote:

Originally Posted by Munch

Quote:

Originally Posted by Simplyscion

you rockin a header?

Unless the first O2 was damaged when the person took it out when they put the header in.

Dec 19, 2005 | 04:21 PM

ScionDad

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Yup, sounds like the first 02 sensor is toast. Even worse...that 02 sensor is stupid expensive.

Dec 19, 2005 | 04:23 PM

Munch

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Give us alittle more information about your setup, and we can help you better.

Dec 19, 2005 | 04:25 PM

Munch

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Quote:

Originally Posted by ScionDad

Yup, sounds like the first 02 sensor is toast. Even worse...that 02 sensor is stupid expensive.

Tell me about it. I couldn't get mine out of my stock header. So instead of damaging it. I just brought a new one. That's why Vito (simplyscion) is laughing. The new air/fuel sensor is right around $225.

Dec 19, 2005 | 04:35 PM

SuperWTC

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Quote:

Originally Posted by Munch

Give us alittle more information about your setup, and we can help you better.

I do not have a header and i never touched the O2. Its plugged in and all secure after the S/C install.

Dec 19, 2005 | 04:37 PM

WeDriveScions

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You are getting an O2 sensor problem.... You may reset it once and then take it to the dealer if it continues to plague you...

Dec 19, 2005 | 04:45 PM

#10

ScionDad

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Quote:

Originally Posted by Munch

Quote:

Originally Posted by ScionDad

Yup, sounds like the first 02 sensor is toast. Even worse...that 02 sensor is stupid expensive.

$225....That's just price gouging

Dec 19, 2005 | 04:47 PM

#11

WeDriveScions

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^ It's proprietary as well, so no easy bosch replacements either.... definately an engineer smiling for that one.... making toyota some extra cash...

Dec 19, 2005 | 04:49 PM

#12

ScionDad

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Quote:

Originally Posted by SuperWTC

Quote:

Originally Posted by Munch

Give us alittle more information about your setup, and we can help you better.

I do not have a header and i never touched the O2. Its plugged in and all secure after the S/C install.

Warranty

Dec 19, 2005 | 04:50 PM

#13

Munch

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Quote:

Originally Posted by ScionDad

Quote:

Originally Posted by Munch

Quote:

Originally Posted by ScionDad

Yup, sounds like the first 02 sensor is toast. Even worse...that 02 sensor is stupid expensive.

$225....That's just price gouging

I didn't pay that much, but that's the going rate and also what I was quoted over the phone for one. I got it much cheaper thanks to my boy.

Dec 19, 2005 | 04:50 PM

#14

ScionDad

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Quote:

Originally Posted by WeDriveScions

^ It's proprietary as well, so no easy bosch replacements either.... definately an engineer smiling for that one.... making toyota some extra cash...

proprietary?

Ouch....

Dec 19, 2005 | 04:59 PM

#15

reagulator

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From: Garden Grove, CA

how do you know it was the first sensor?

Quote:

p0420 Catalyst System Efficiency Below Threshold on Bank 1 (the rear sensor, or the sensor after the converter)

Dec 19, 2005 | 05:12 PM

#16

jmiller20874

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From: Germantown, MD

If so, that's the sensor on the S-pipe. Warranty. If it was the A/F sensor, his car would be running like a$$ 'cause it would most likely be in safe mode.

Dec 19, 2005 | 05:13 PM

#17

Munch

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The O2 on the s-pipe is alot cheaper than the other one. Who installed your charger?

Dec 19, 2005 | 06:04 PM

#18

SuperWTC

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Quote:

Originally Posted by Munch

The O2 on the s-pipe is alot cheaper than the other one. Who installed your charger?

I installed it myself. Im 100% sure everything i did is correct. There was no detail left out nor a shortcut i took. Could it be fuel?

Dec 20, 2005 | 02:01 PM

#19

dachmo

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Quote:

Originally Posted by SuperWTC

Quote:

Originally Posted by Munch

The O2 on the s-pipe is alot cheaper than the other one. Who installed your charger?

I installed it myself. Im 100% sure everything i did is correct. There was no detail left out nor a shortcut i took. Could it be fuel?

Did you do the SC reflash after you installed it?

Dec 20, 2005 | 02:15 PM

#20

Munch

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Quote:

Originally Posted by dachmo

Quote:

Originally Posted by SuperWTC

Quote:

Originally Posted by Munch

The O2 on the s-pipe is alot cheaper than the other one. Who installed your charger?

I installed it myself. Im 100% sure everything i did is correct. There was no detail left out nor a shortcut i took. Could it be fuel?

Did you do the SC reflash after you installed it?

That wouldn't throw a CEL

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