PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Need help with SES codes please.

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Old Jul 12, 2002 | 03:12 PM
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From: Vertigo
Default Need help with SES codes please.

PO133 and PO153 slow O2 response- 98 Z with Hooker LT's, custom Y-pipe, O2 simms.

and PO122 TP low voltage- ? Home ported TB with bump stop mod at 4.6v's.

Are the O2 sensors bad? Car has Hooker longtubes and O2 simms. '98 Z28. O2's do seam to be eratic under WOT, but not REAL bad...

And what's up with the TP low voltage.

Any help is greatly appreciated.
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Old Jul 12, 2002 | 03:46 PM
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From: Corydon Indiana
Default Re: Need help with SES codes please.

My rear o2 sensors was setting off codes on my trans am when i put my slp headers on. i was told alomost everyone goes threw this problem but when put it on a computer it read that they where reading fine.. The only way i got my ses light off was to put cats on it and it hasnt been back since.. I got the random technology ones it made it alot deeper and got red of the raspy noise that the off road pipe had. I hope this helps <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
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