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PCM Diagnostics & Tuning
sorry for the redundancy

PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

sorry for the redundancy

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Sep 18, 2008 | 02:00 AM

#1

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From: midland texas

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sorry for the redundancy

of asking what these dtc's mean but im wondering why my SES light came back on. i know some of these are because of my gutted cat's but i turned them off so i know it isnt the reason. anyway an explanation of these would help

[PCM] P0134 - HO2S Circuit Insufficient Activity Bank 1 Sensor 1 (Immature)
[PCM] P1133 - HO2S Insufficient Switching Bank 1 Sensor 1 (SES) (Pending) (Old) (History) (Current) (Immature)
[PCM] P1626 - Theft Deterrent Fuel Enable Signal Not Received (History) (Immature)
[PCM] P1637 - Generator L-Terminal Circuit (History) (Immature)

not quite sure what alll these ones are for. please help

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Sep 18, 2008 | 11:21 AM

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First Two Lazy / Dying O2 Sensor.
Third : http://www.gearchatter.com/viewtopic8659.php
Forth : http://www.gearchatter.com/viewpost14190.php

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Sep 18, 2008 | 11:33 AM

#3

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did you just recently put headers on also?

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Sep 19, 2008 | 01:49 PM

#4

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no i put a cut out on recently. im guessing none of them are going to be to bad for the engine correct?

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2000, circuit, generator, gmc, lterminal, p1626, p1637, sierra

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