p0121 - LS1TECH - Camaro and Firebird Forum Discussion

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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

17,402

PCM Diagnostics & Tuning

05, 07, ac, air, blow, chevy, code, constant, firebird, gmc, ls1, p0121, pontiac, ses, trailblazer, wont

Help With SES Light (Code P0121)

(

1 2)

StoreKeeper99Z28 on Nov 29, 2003

Sep 7, 2019 10:45 AM
by Linson

22

11,748

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

15,413

LS4 Performance

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

6,960

PCM Diagnostics & Tuning

cam, caused, corvette, dyno, dynotune, ls1, md, p0121, problem, surging, tech, torquer, tune, tuning, v2

Dynotune problem torquer v2 cam

(

1 2)

WS SIK6 on Jun 25, 2013

Jul 12, 2013 11:49 PM
by WS SIK6

31

5,877

PCM Diagnostics & Tuning

P0200 & P0121 codes need HELP!

six2eight on Feb 27, 2013

Feb 27, 2013 10:31 AM
by six2eight

0

814

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

2,837

PCM Diagnostics & Tuning

08, 102, connector, cts, efi, fast, nick, p0106, p0121, performance, problems, specialist, tac, tune, tuning, williams

Nick Williams 102...p0121 code? Tuning Issue?

boostin05blacksti on Oct 8, 2012

Oct 8, 2012 07:55 PM
by edcmat-l1

3

5,602

PCM Diagnostics & Tuning

04, cam, gto, hot, learn, long, ls, ls1tech, ltft, maf, p0121, pcm, swap, tune, unplug

New Tune after cam

Decadence75 on Sep 15, 2012

Sep 15, 2012 09:26 PM
by outkast6991

12

2,053

PCM Diagnostics & Tuning

07, adjusting, bigstuff, check, code, diagnostic, hp, low, ls1tech, p0121, predicted, tahoe, tps, tuners, voltage

can low voltage cause TPS codes? P0121

streetknight2 on Aug 1, 2012

Aug 6, 2012 01:56 PM
by streetknight2

15

5,906

PCM Diagnostics & Tuning

asr, bad, cam, code, hot, issue, light, ls, ls1, make, map, on, p0121, sanity, sensor, tps

Consistent Negative STFTs

Aggie_Ls1 on Jun 13, 2012

Jun 14, 2012 01:56 PM
by Aggie_Ls1

7

1,564

PCM Diagnostics & Tuning

101, 2000, adjust, body, camaro, code, fast, hp, mm, p0121, pp, real, realfixes, reset, throttle, tps, tuners

P0121 tps code questions

stewdy1 on Jan 27, 2012

May 7, 2012 08:07 PM
by 5.3blazer

5

6,361

PCM Diagnostics & Tuning

2007, 2008, abs, avalanche, battery, chevy, code, dying, ecm, headlight, located, p0121, pick, replacement, sevice, stabilitrak, tahoe, tcs

2008 Chevy Tahoe LT-P0121, Service TCS, Service ABS

OnyxY2KSS on Oct 3, 2011

Oct 4, 2011 03:09 PM
by FSTR/TA

1

4,151

Texas Members

02, 98, cam, camaro, chevrolet, chevy, limp, ls1, mode, ms3, p0121, putting, trans, wot, z28

Trans going into limp mode from time to time need help

IKNO13 on Aug 5, 2011

Aug 8, 2011 03:06 PM
by IKNO13

4

1,853

PCM Diagnostics & Tuning

P0121 with NO a/c

sujomatt on Jul 21, 2011

Jul 21, 2011 02:04 PM
by sujomatt

1

1,018

PCM Diagnostics & Tuning

2010, 38, camaro, chevy, comm, ideas, lost, map, modding, p0121, pcm, problems, reading, sensor, u0109

2010 camaro problems need ideas

boostedyards86 on Jul 5, 2011

Jul 8, 2011 10:34 AM
by Old Geezer

14

3,543

PCM Diagnostics & Tuning

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

2,118

Generation IV Internal Engine

ac, circut, code, fall, figure, firebird, input, low, ls1, maf, p0102, p0121, p0803, sen, vaf

P0102, P0121, P0803 Help Please!

CJJones87 on Jan 2, 2011

Jan 7, 2011 03:28 PM
by jdmotox333

2

2,055

PCM Diagnostics & Tuning

2002, automatic, car, compressor, cracked, flush, ls1tech, p0121, problems, put, shifting, shifts, stack, trans, transmission

need help on a new transmission not shifting right

khoward8509 on Sep 21, 2010

Sep 22, 2010 08:35 PM
by khoward8509

11

2,337

Automatic Transmission

60, cam, code, lq4, ls1, options, p0121, polluter, problems, pulluter, tuning, tunning

map table adjustments for polluter cam

D01ss on Sep 11, 2010

Sep 12, 2010 07:30 AM
by 69LT1Bird

4

1,193

PCM Diagnostics & Tuning

98, 9802, camaro, code, codes, engine, gay, hemi, light, p0121, p0135, po135, po141, po155, po161

im getting come gay codes after 98 to 02 pcm swap.

themack56 on Jul 18, 2010

Jul 20, 2010 06:45 AM
by ringram

4

1,196

PCM Diagnostics & Tuning

not happy with new times

(

1 2)

formula4437 on Jun 30, 2010

Jul 5, 2010 11:29 AM
by AChotrod

20

1,626

Drag Racing Tech

23, 4l60e, angle, bogs, engine, ls1tech, nomal, p0121, p0785, shifting, shifts, stack, stacking, throttle, transmission, whats

2-3 stacking shifts? whats going on?

NAVY99B4C on May 26, 2010

May 28, 2010 02:19 PM
by performabuilt

7

1,406

Automatic Transmission

50, 70two, camaro, density, lm7, maf, mode, nova, p0121, set, speed, speeddensity, terminal, wire, wiring

how to enter speed density mode with 5 Wire MAF

vannatta20 on May 9, 2010

May 16, 2010 09:29 PM
by elias_799

7

2,158

PCM Diagnostics & Tuning

camaro, chevy, ckt, p0121, position, rangeperf, sensor, tpspedal

Got codes need help

RPD_Vette84 on Dec 10, 2009

Dec 12, 2009 07:33 PM
by RPD_Vette84

1

739

PCM Diagnostics & Tuning

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

1,065

PCM Diagnostics & Tuning

1993, 2000, 43, 502, 5v, fluctuation, idle, low, maf, p0102, p0121, p0122, pcm, reference, setting, tps, voltage, z28

TPS Woes

LS1Silverado05 on Feb 18, 2009

Jun 4, 2009 04:39 PM
by MaroMan

11

1,957

PCM Diagnostics & Tuning

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

3,731

PCM Diagnostics & Tuning

code, codes, leak, ls1, p0121, p0135, p0155, reason, tech, throwing, tps, tuning, vacuum

Throwing codes: p0121 p0135 p0155

Emoney97ss on May 29, 2009

Jun 1, 2009 03:05 AM
by Emoney97ss

3

1,238

PCM Diagnostics & Tuning

P0106, p0121, p0336

Dirty 30 on Feb 5, 2009

Feb 6, 2009 05:32 PM
by Dirty 30

14

2,422

PCM Diagnostics & Tuning

cam, codes, hot, hotcam, hotcamnow, hotcamnowcom, hotcams, hp, ls, ls1, p0121, p0171, tuners, tuning

LS1 Hot Cam... now Codes?

frankmarroquin on Jul 21, 2008

Jul 21, 2008 12:08 AM
by frankmarroquin

0

897

PCM Diagnostics & Tuning

2001chevy, bank, camaro, chevy, code, fuel, lean, p0121, p0174, system, tps, trim

my car is poping codes like popcorn!!!

LS1BLKSS on Jul 6, 2008

Jul 6, 2008 06:25 PM
by ss.slp.ls1

8

833

Western Members

4600, chrysler, efi, limiter, live, p0121, problem, rpm

WOT problem

Stephen Griner on Apr 23, 2007

Mar 14, 2008 07:36 AM
by Frost

9

1,623

PCM Diagnostics & Tuning

driving, hp, hptuners, ls1tech, p0121, tuners

p0121...searched

teke184 on Jan 7, 2008

Jan 7, 2008 12:35 PM
by foff667

7

1,659

PCM Diagnostics & Tuning

another p0121 code...

slmdLS1 on Dec 8, 2007

Dec 8, 2007 11:53 AM
by slmdLS1

0

550

PCM Diagnostics & Tuning

1999, 2007, 2500, 2500hd, code, dtc, duramax, gmc, hd, p0117, p0121, p0157, p1258, sierra, trouble

service engine soon light

Creman on Nov 5, 2007

Nov 6, 2007 05:57 PM
by eallanboggs

10

1,175

Generation III Internal Engine

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

3,471

Generation III Internal Engine

P0121 and p0300 code?

Kiss_My_99SS on Sep 25, 2007

Sep 25, 2007 12:51 PM
by Kiss_My_99SS

0

1,577

Generation III External Engine

TPS sensor p0121

kkslds on Sep 23, 2007

Sep 23, 2007 08:43 PM
by kkslds

2

1,136

PCM Diagnostics & Tuning

07, 53, blip, cherokee, high, idle, ls1, ls7, p0121, reset, shifting, suburban, throttle, tps, zone

TPS reads 2.4% when throttle is closed. WTF?

(

1 2 3 4 5)

Patrick G on Apr 28, 2007

Sep 21, 2007 02:14 PM
by 99blancoSS

80

39,286

PCM Diagnostics & Tuning

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

2,343

PCM Diagnostics & Tuning

2500hd, asr, big, cam, cams, error, gmc, install, ls1, ls1tech, map, p0121, sierra, tech

Big cam = no ASR?

(

1 2)

gillbot on Jul 7, 2003

Jul 31, 2007 04:07 PM
by gillbot

26

4,779

Generation III Internal Engine

2002, 2003, 230227, 230228, 591571, cam, cams, comp, kia, maf, optima, p0121

230/228 .591/.588 112LSA help

(

1 2)

sampson01 on Mar 18, 2007

Jul 18, 2007 11:03 AM
by sampson01

31

2,172

Generation III Internal Engine

Question on SES codes

SSsuperdave on Jul 6, 2007

Jul 6, 2007 10:31 PM
by Shallow Bay

3

798

PCM Diagnostics & Tuning

99, c0240, cam, firebird, gm, loss, ls1, memphis, p0121, p0122, power, silverado, swap, trans, tuning, wot

Problems remain w/surging @ wot after cam swap & tuning

shortdog on Jun 18, 2007

Jul 6, 2007 09:28 PM
by shortdog

10

6,436

PCM Diagnostics & Tuning

06, 4l80e, 4shared, corruption, editing, file, hp, hpl, p0121, points, setting, shift, trailblazer, tranny, tuner

Tranny hp tuners step in need help

(

1 2 3)

dnkynrbk on Mar 16, 2007

Jun 20, 2007 11:05 PM
by LS1 Sounds

40

3,741

Automatic Transmission

code P0121...

senicalj4579 on Mar 28, 2007

May 31, 2007 01:03 PM
by 98Camarod

2

980

PCM Diagnostics & Tuning

30th, 98, ac, affect, anniversary, asr, camaro, code, p0121, pcm, repair, sensor, ss, throw, tps, z06, z28

TPS sensor, ASR, A/C and cam?

1998z28ss on Sep 17, 2006

Apr 12, 2007 10:03 AM
by 35thUCF

7

2,048

PCM Diagnostics & Tuning

A4 bad or tune problem?

billybadd on Mar 31, 2007

Apr 1, 2007 06:38 PM
by billybadd

7

907

PCM Diagnostics & Tuning

1998, camaro, ls1, p0121, p0123, pics, put, subaru, tech, tps

LS1's and TPS's

blackfang on Mar 26, 2007

Mar 28, 2007 05:23 PM
by senicalj4579

1

792

General Maintenance & Repairs

Threads Tagged with p0121