po121 - LS1TECH - Camaro and Firebird Forum Discussion

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PO121 code after LQ4 swap

OUTLWZ on Oct 13, 2009

Feb 12, 2022 01:57 AM
by ChopperDoc

10

1,242

PCM Diagnostics & Tuning

2002, 2003, 2006, 53, camaro, carlo, code, codes, gto, ls1, ls2, monte, p0121, po121, tps

P0121 code. what is it exactly?

WicketMike on Dec 4, 2003

Oct 9, 2021 11:49 AM
by ChopperDoc

19

17,304

PCM Diagnostics & Tuning

2008, actron, camaro, code, covered, gxp, impala, located, ls4, p0121, po121, position, sensor, ss, throttle, warranty

P0121 Code Help???

Uptown_GXP on Oct 3, 2011

Sep 15, 2016 10:12 PM
by Sint3k

14

15,384

LS4 Performance

2006, 91, chevy, code, fuel, impala, lean, ls1, pcm, po121, pressure, reset, rx7, tuning, wiring, wot

Weird Issue, going lean at WOT(Ls1 Rx7)

(

1 2)

zx3focus on May 10, 2009

Dec 7, 2015 11:36 AM
by jimmyblue

24

7,252

PCM Diagnostics & Tuning

2010, cam, camaro, car, causing, chevy, code, error, fix, funny, ls1tech, maf, p0121, po121, shifts

Help with my error code! P0121!!

EJVYFZ on Jul 17, 2010

Sep 11, 2013 04:31 AM
by nj02z

4

6,912

PCM Diagnostics & Tuning

cammed, code, corvette, hp, ls1, p0121, po121, setting, tuners

Just got my hc ls1 tuned Code P0121

flattusmaximus78 on Oct 15, 2012

Jan 2, 2013 12:34 PM
by flattusmaximus78

5

2,828

PCM Diagnostics & Tuning

03, 121, 2000, bad, blazer, body, chevy, code, grand, location, po121, position, prix, sensor, throttle, tps, unit

PO121: Bad Throttle Position Sensor

Miles75 on Sep 29, 2012

Sep 29, 2012 04:27 PM
by baltsk8er69

1

8,382

LS4 Performance

08, chevrolet, chevy, code, gm, l92, ls2, ls7, p0121, p2138, pedal, po121, response, throttle, trouble, truck

L92 throwing P0121 and P2138 codes

Offroadrules15 on Jan 19, 2011

Jan 20, 2011 02:35 PM
by Offroadrules15

1

2,106

Generation IV Internal Engine

121, circuit, code, control, emission, evaporative, high, info, po, po121, po443, probe, system, valve, vent

Help with scan codes PO121, and PO443

bigken on Aug 17, 2010

Aug 18, 2010 03:35 PM
by bigken

16

5,165

Florida Members

trans is doing wierd things

SILVER 2288 SS on May 27, 2010

Jun 18, 2010 10:07 AM
by SILVER 2288 SS

4

744

Automatic Transmission

121, 2000, astro, cam, chevy, code, codes, cold, gm, idle, install, ls1, po, po102, po121

Dreaded PO121!!!!!!!!!!!!!!!!!!!!!!!!!

98ZEMT on Apr 4, 2010

Apr 4, 2010 09:46 PM
by 98ZEMT

4

1,512

PCM Diagnostics & Tuning

2000, air, buton, code, control, gm, po121, ram, tps, tracion, traction

Traction control help please

speedfreak2685 on Oct 4, 2009

Oct 7, 2009 08:55 PM
by z28adiction

4

620

General Maintenance & Repairs

06, 2007, cobalt, code, coming, firebird, lq4, ls1, ls1tech, p0121, p0507, po121, po507, silverado

NEED HELP! Codes!

mattslightning on Sep 25, 2009

Sep 27, 2009 06:04 AM
by 69LT1Bird

5

1,056

PCM Diagnostics & Tuning

2002, 50, camaro, chevy, code, gm, gmc, iac, ls1tech, po121, problem, problems, tps, wiring, wrx

Electrical problem. TPS IAC I don't know.

junkindatrunkmx6 on Aug 24, 2009

Aug 27, 2009 11:37 PM
by junkindatrunkmx6

6

1,509

General Maintenance & Repairs

1999, a4, body, camaro, code, ls1, ls1tech, p0121, po121, po121b, position, sensor, throttle, throwing, trans

Throttle body causing p0121

Emoney97ss on Jun 3, 2009

Jun 4, 2009 09:21 AM
by Bad30th

3

3,720

PCM Diagnostics & Tuning

2005, 2006, body, carlo, impala, intake, ls1, ls1tech, manifold, monte, po121, porting, relearn, ss, throttle, tps

Ported intake manifold and t body PO121

supercatxr7 on Sep 4, 2008

Sep 7, 2008 11:12 AM
by TiredGXP

3

2,403

LS4 Performance

PO121 CODE OR QUICK SHIFT 1-2-3-4 at WOT by 40 MPH FIX

performabuilt on Aug 5, 2008

Aug 5, 2008 02:11 PM
by performabuilt

0

907

Automatic Transmission

2007, camaro, chevrolet, chevy, code, codes, engine, p0121, p0121p0300, p0300, po121, po300

P0121 and P0300 codes?

Kiss_My_99SS on Sep 25, 2007

Sep 25, 2007 10:24 PM
by 99blancoSS

2

3,436

Generation III Internal Engine

1998, 4l60e, 98, a4, downshift, error, ls1, map, max, p0121, po121, tables, times, tranny, tunning, wont

Wont downshift when mashing pedel (logs,configs,tunes included)

(

1 2)

DóòD on Aug 2, 2007

Aug 4, 2007 11:27 PM
by horist

28

2,310

PCM Diagnostics & Tuning

Help find the missing RWHP : 408ci, M6, 9"

slmdLS1 on Jun 19, 2007

Jun 20, 2007 12:52 AM
by 1997bird

6

727

Generation III Internal Engine

car, code, error, hp, hptuners, ls1tech, map, max, p0121, po121, solve, tuners

code p0121

ws6112 on Apr 23, 2006

Apr 29, 2006 01:09 PM
by ws6112

3

1,207

PCM Diagnostics & Tuning

P0101 & P0121

ESR on Mar 13, 2006

Apr 29, 2006 01:08 PM
by ws6112

8

2,978

PCM Diagnostics & Tuning

P0121

SgtB on Feb 14, 2006

Feb 14, 2006 07:51 PM
by SgtB

8

1,906

PCM Diagnostics & Tuning

need help on code:po121

yellowbird on Mar 17, 2005

Mar 17, 2005 05:34 PM
by yellowbird

2

590

PCM Diagnostics & Tuning

throwing a po121 code at idle. help.!

yellowbird on Jan 31, 2005

Jan 31, 2005 05:08 PM
by yellowbird

0

349

PCM Diagnostics & Tuning

body, buy, circuit, failure, inrange, operating, operational, p0121, p0121inrange, part, po121, porting, position, sensor, throttle

P0121 In-Range Operating Throttle Position Sensor circuit failure

Jolly^Roger on Nov 8, 2004

Nov 8, 2004 03:32 PM
by Jolly^Roger

0

1,667

Generation III External Engine

07, chevy, code, impala, po121, tps, trans, whatiscodepo121

wtf.! getting this nagging PO121 code

yellowbird on Sep 13, 2004

Sep 14, 2004 05:04 PM
by yellowbird

4

865

PCM Diagnostics & Tuning

3800, asr, cam, limp, mode, ms3, p0121, po121, stalls, z28

P0121 and ASR help!

EliteZ28 on Jun 1, 2004

Sep 11, 2004 12:02 PM
by 2MuchRiceMakesMeSick

7

832

PCM Diagnostics & Tuning

121, 2000, 2001, 300m, camaro, code, corvette, fault, gran, grand, location, ls1, o2, p0121, po, po121, z28

Large cams = po121 code?

foff667 on Apr 18, 2004

Apr 19, 2004 10:40 PM
by foff667

14

3,739

Generation III Internal Engine

2000, 53, cam, code, hesataion, po121, sierra, superchargers, tune, whipple

Problems after TSP 231/237 cam

(

1 2)

CAT3 on Dec 20, 2003

Dec 26, 2003 05:05 PM
by WS6snake-eater

24

3,005

Generation III Internal Engine

06, 08, 2002, 53, cam, code, grand, p0121, pedal, po121, position, prix, sensor, ss, swap, throttle, trailblazer

explanation for P0121?

(

1 2)

WicketMike on Dec 19, 2003

Dec 24, 2003 10:04 AM
by WS6snake-eater

26

17,132

PCM Diagnostics & Tuning

2003, carlo, counts, efilive, iac, ls1tech, monte, p0405, po121, showing

IAC counts at 0

(

1 2)

NO CATZZ on Nov 20, 2003

Dec 12, 2003 02:36 PM
by rwb

20

7,253

PCM Diagnostics & Tuning

02, 09, 2001, 2002, ac, camaro, code, ls1, p0121, p1635, po121, repair, silverado, ss, throwing, z06

SES Code P0121

MaxedOutSS99 on Sep 25, 2003

Sep 29, 2003 08:40 PM
by Mid-Life Speed

6

1,564

PCM Diagnostics & Tuning

po121 and 122

tranzam98 on Jun 6, 2003

Jun 27, 2003 01:08 PM
by abarus

12

878

PCM Diagnostics & Tuning

46435, atitvity, insufecent, po121, position, sensor, throttle

help with po121

alws6 on Apr 20, 2003

May 15, 2003 04:12 PM
by killer01ws6

8

895

PCM Diagnostics & Tuning

PO121 ???

RALPH N NY on Nov 15, 2001

Nov 15, 2001 05:50 PM
by c4c5specialist

1

786

Generation III Internal Engine

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