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 12-04-2003

10-09-2021 11:49 AM
by ChopperDoc

19

15,234

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 11-29-2003

09-07-2019 10:45 AM
by Linson

22

10,259

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 10-03-2011

09-15-2016 10:12 PM
by Sint3k

14

14,541

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 07-17-2010

09-11-2013 04:31 AM
by nj02z

4

6,345

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 06-25-2013

07-12-2013 11:49 PM
by WS SIK6

31

5,557

PCM Diagnostics & Tuning

P0200 & P0121 codes need HELP!

six2eight on 02-27-2013

02-27-2013 10:31 AM
by six2eight

0

746

PCM Diagnostics & Tuning

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

Just got my hc ls1 tuned Code P0121

flattusmaximus78 on 10-15-2012

01-02-2013 12:34 PM
by flattusmaximus78

5

2,740

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 10-08-2012

10-08-2012 07:55 PM
by edcmat-l1

3

5,056

PCM Diagnostics & Tuning

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

New Tune after cam

Decadence75 on 09-15-2012

09-15-2012 09:26 PM
by outkast6991

12

1,762

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 08-01-2012

08-06-2012 01:56 PM
by streetknight2

15

5,712

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 06-13-2012

06-14-2012 01:56 PM
by Aggie_Ls1

7

1,447

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 01-27-2012

05-07-2012 08:07 PM
by 5.3blazer

5

6,050

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 10-03-2011

10-04-2011 03:09 PM
by FSTR/TA

1

4,080

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 08-05-2011

08-08-2011 03:06 PM
by IKNO13

4

1,559

PCM Diagnostics & Tuning

P0121 with NO a/c

sujomatt on 07-21-2011

07-21-2011 02:04 PM
by sujomatt

1

911

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 07-05-2011

07-08-2011 10:34 AM
by Old Geezer

14

3,480

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 01-19-2011

01-20-2011 02:35 PM
by Offroadrules15

1

1,920

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 01-02-2011

01-07-2011 03:28 PM
by jdmotox333

2

1,972

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 09-21-2010

09-22-2010 08:35 PM
by khoward8509

11

2,193

Automatic Transmission

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

map table adjustments for polluter cam

D01ss on 09-11-2010

09-12-2010 07:30 AM
by 69LT1Bird

4

1,107

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 07-18-2010

07-20-2010 06:45 AM
by ringram

4

1,125

PCM Diagnostics & Tuning

not happy with new times

(

1 2)

formula4437 on 06-30-2010

07-05-2010 11:29 AM
by AChotrod

20

1,484

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 05-26-2010

05-28-2010 02:19 PM
by performabuilt

7

1,267

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 05-09-2010

05-16-2010 09:29 PM
by elias_799

7

1,942

PCM Diagnostics & Tuning

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

Got codes need help

RPD_Vette84 on 12-10-2009

12-12-2009 07:33 PM
by RPD_Vette84

1

652

PCM Diagnostics & Tuning

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

NEED HELP! Codes!

mattslightning on 09-25-2009

09-27-2009 06:04 AM
by 69LT1Bird

5

995

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 02-18-2009

06-04-2009 04:39 PM
by MaroMan

11

1,867

PCM Diagnostics & Tuning

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

Throttle body causing p0121

Emoney97ss on 06-03-2009

06-04-2009 09:21 AM
by Bad30th

3

3,375

PCM Diagnostics & Tuning

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

Throwing codes: p0121 p0135 p0155

Emoney97ss on 05-29-2009

06-01-2009 03:05 AM
by Emoney97ss

3

1,157

PCM Diagnostics & Tuning

P0106, p0121, p0336

Dirty 30 on 02-05-2009

02-06-2009 05:32 PM
by Dirty 30

14

2,278

PCM Diagnostics & Tuning

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

LS1 Hot Cam... now Codes?

frankmarroquin on 07-21-2008

07-21-2008 12:08 AM
by frankmarroquin

0

837

PCM Diagnostics & Tuning

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

my car is poping codes like popcorn!!!

LS1BLKSS on 07-06-2008

07-06-2008 06:25 PM
by ss.slp.ls1

8

616

Western Members

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

WOT problem

Stephen Griner on 04-23-2007

03-14-2008 07:36 AM
by Frost

9

1,469

PCM Diagnostics & Tuning

driving, hp, hptuners, ls1tech, p0121, tuners

p0121...searched

teke184 on 01-07-2008

01-07-2008 12:35 PM
by foff667

7

1,597

PCM Diagnostics & Tuning

another p0121 code...

slmdLS1 on 12-08-2007

12-08-2007 11:53 AM
by slmdLS1

0

494

PCM Diagnostics & Tuning

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

service engine soon light

Creman on 11-05-2007

11-06-2007 05:57 PM
by eallanboggs

10

1,115

Generation III Internal Engine

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

P0121 and P0300 codes?

Kiss_My_99SS on 09-25-2007

09-25-2007 10:24 PM
by 99blancoSS

2

2,925

Generation III Internal Engine

P0121 and p0300 code?

Kiss_My_99SS on 09-25-2007

09-25-2007 12:51 PM
by Kiss_My_99SS

0

1,451

Generation III External Engine

TPS sensor p0121

kkslds on 09-23-2007

09-23-2007 08:43 PM
by kkslds

2

1,068

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 04-28-2007

09-21-2007 02:14 PM
by 99blancoSS

80

31,988

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 08-02-2007

08-04-2007 11:27 PM
by horist

28

2,126

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 07-07-2003

07-31-2007 04:07 PM
by gillbot

26

4,416

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 03-18-2007

07-18-2007 11:03 AM
by sampson01

31

2,016

Generation III Internal Engine

Question on SES codes

SSsuperdave on 07-06-2007

07-06-2007 10:31 PM
by Shallow Bay

3

728

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 06-18-2007

07-06-2007 09:28 PM
by shortdog

10

5,995

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 03-16-2007

06-20-2007 11:05 PM
by LS1 Sounds

40

3,322

Automatic Transmission

code P0121...

senicalj4579 on 03-28-2007

05-31-2007 01:03 PM
by 98Camarod

2

876

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 09-17-2006

04-12-2007 10:03 AM
by 35thUCF

7

1,851

PCM Diagnostics & Tuning

A4 bad or tune problem?

billybadd on 03-31-2007

04-01-2007 06:38 PM
by billybadd

7

820

PCM Diagnostics & Tuning

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

LS1's and TPS's

blackfang on 03-26-2007

03-28-2007 05:23 PM
by senicalj4579

1

737

General Maintenance & Repairs

Threads Tagged with p0121