HELP!!! Failed emissions with a cam...

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Jul 7, 2006 | 06:34 PM

bsmall423

Thread Starter

Racer

Joined: Oct 2004

Posts: 261

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From: Lake In The Hills IL

HELP!!! Failed emissions with a cam...

Hey guys.. i have a 224/228 on a 114 untuned in my car with straight pipes. I failed the emissions test because i cleared all of the codes. If i dont clear the code im going to throw a check engine light. If i get my car tuned would this help out the situation, or am i fighting a lost cause?

Jul 7, 2006 | 06:37 PM

SteveDoten

Le Mans Master

Joined: Sep 2003

Posts: 6,276

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From: Farmington CT

Cruise-In VII Veteran

i wouldn't go to a sniff test w/out cats, what codes are you getting? you shouldn't have a problem with cats and a tune

Jul 7, 2006 | 06:43 PM

bsmall423

Thread Starter

Racer

Joined: Oct 2004

Posts: 261

Likes: 0

From: Lake In The Hills IL

P0113 Intake Air temperature (IAT) Sensor Circuit High Voltage -B C
P1111 Intake Air temperature (IAT) Sensor Circuit Intermittent High Voltage -C C
B0521 Tachometer Signal Circuit Malfunction H
U1160 Loss of Communications with LDCM H
B2276 Door Lock Motor/Mirror Heater Fit DCM-L H
U1096 Loss Of Communication with IPC (No SOH Message Received -RFA H
U1064 Loss Of Communication with DCM (No SOH Message Received -RFA H
U1016 Loss Of Communication with PCM (No SOH Message Received -RFA H
C2120 TPM System malfunction (No Sensors Received -TPM HC

those were the codes left on my dic

Jul 7, 2006 | 06:44 PM

bsmall423

Thread Starter

Racer

Joined: Oct 2004

Posts: 261

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From: Lake In The Hills IL

i still have cats and its a 2000 so no sniff test for me... i guess ill have to get it tuned.

Jul 7, 2006 | 06:49 PM

FRCTony

Drifting

Joined: Mar 2005

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From: Northern VA

Looks like if you just fix your wonky Intake Air Temp sensor, you'll be good to go.

You probably know you need a tune...

Jul 7, 2006 | 06:51 PM

bsmall423

Thread Starter

Racer

Joined: Oct 2004

Posts: 261

Likes: 0

From: Lake In The Hills IL

Quote:

Originally Posted by FRCTony

Looks like if you just fix your wonky Intake Air Temp sensor, you'll be good to go.

You probably know you need a tune...

any ideas what could be the matter with it? i obviously have an intake, it seems like i could be using the wrong coupler to attach it, but would that be a problem? buy a new sensor?

Jul 7, 2006 | 07:38 PM

FRCTony

Drifting

Joined: Mar 2005

Posts: 1,737

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From: Northern VA

I'd check the connector and wiring.

Try a search, I seem to recall someone else with this problem recently.

Jul 7, 2006 | 07:48 PM

phils C5 vette

Le Mans Master

Joined: Nov 2003

Posts: 8,004

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From: Tampa Fl

St. Jude Donor '12-'13-'14

I had the TR224 cam and passed emmissions both in NY and VA. I had the cats and all the bolt ons. I good tune will help you pass emmissions.

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Jul 7, 2006 | 07:56 PM

WKMCD

Race Director

Joined: Dec 2004

Posts: 13,760

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From: Haymarket VA

Get it tuned by someone good and have them turn off any remaining codes that are thrown. I run a 230-236 112 in a H/C engine and FAST intake with LS2 TB and I don't through any codes at all.....That anyone will ever see.

Jul 7, 2006 | 08:09 PM

#10

vettenuts

Team Owner

Joined: Mar 1999

Posts: 22,025

Likes: 192

From: At the beach in little Rhody

Looks to me that you have an IAT issue that needs resolution, try to diagnose and correct it. The rest of the codes shouldn't be an issue for emissions.

Jul 7, 2006 | 09:47 PM

#11

Threed

Burning Brakes

Joined: Apr 2003

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From: GOCC - Rebels Without A Clue Santa Barbara, CA

Jul 7, 2006 | 10:24 PM

#12

bsmall423

Thread Starter

Racer

Joined: Oct 2004

Posts: 261

Likes: 0

From: Lake In The Hills IL

Quote:

Originally Posted by Threed

awesome.. i ordered a new sensor ($4.90) and a new harness (13.xx) ill post an update if it resolves the problem..

Jul 7, 2006 | 11:21 PM

#13

Bill Curlee

Tech Contributor

Joined: Dec 1999

Posts: 32,910

Likes: 2,402

From: Anthony TX

CI 6,7,8,9,11 Vet

St. Jude Donor '08

The tune is NOT your problem!! You have an electrical or sensor problem that is causing the MIL to set. Fix the:

P0113 Intake Air temperature (IAT) Sensor Circuit High Voltage -B C
P1111 Intake Air temperature (IAT) Sensor Circuit Intermittent High Voltage -C C
B0521 Tachometer Signal Circuit Malfunction H

The other codes should not be emissions related and wont effect the emissions test.

Before you go back and have your emissions rechecked, clear all the codes and then, you will need to complete the driving cycle portion of the PCM test before it will pass the emissions test.

I have the procedure at home (on the road to a C5 car show in Canada

) and will post it when I get home if no one else does.

Bill C

Jul 8, 2006 | 10:19 AM

#14

SpeedyZ

Drifting

Joined: Oct 2004

Posts: 1,384

Likes: 8

From: Southwest Virginia

Clear all your codes then drive it around at least 30 minutes and recheck your codes. Post any codes that return. All those U codes don't look good, but was probably the result of a dead battery at some point in time. Other codes may also be from a dead battery. Clear then, drive it, check and post the codes that return.