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ROSS3R Total posts: 1376
Kenny Rosser2000 Grand Prix GTP Joined: 07 Oct 2004 Location: Binghamton/Vestal, NY Age: 43 |
 Posted: Wed Apr 23, 2008 9:48 pm Post subject: EVAP Code Deleting? |
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I see that if you order a PCM from ZZP you can have the EVAP code deleted when purchasing the PCM. What is the purpose and why would you delete the EVAP code?
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2000 PONTIAC GRAND PRIX GTP
VS|TOG’s|ZZP II IC|ZZP Stg II TB|Stg 4 Gen III|2.8 MPS |
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| seen96 Total posts: 2033
Drag Radials Suck on FWD.1997 Grand Prix GT Joined: 01 Oct 2003 Location: elbows deep in 4t65e Age: 46 |
| Posted: Wed Apr 23, 2008 10:07 pm Post subject: |
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Just for fun..............
LOL....seriously, some people remove the EVAP because its a pain to diagnose when you get a code, it costs a lot to have a shop troubleshoot and repair it, its easy to remove, it cuts a few pounds off the car, it throws a tune off sometimes, and you fail your inspection with those codes (depending on the state)...like good ol NY. 
If the codes PCM has the EVAP codes not reporting, it wont turn your SES light on or trip a code within the PCM,.
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ZZP stuff...
Heads (started as ZZP stg.3 with some improvements)
Cam (XPZ with a slightly different components for valve movment)
IC (Ford Cobra coolant resv., frt exchr the size of a engine rad. weight consum. rear expans. tank)
"Certified Auto Trans Shop" Transmission sold by ZZP...I have no comment for this peice of...great trans. 
Also,
SLP Headers <--FOR SALE
Eaton's Gen.3 M90 |
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| ROSS3R Total posts: 1376
Kenny Rosser2000 Grand Prix GTP Joined: 07 Oct 2004 Location: Binghamton/Vestal, NY Age: 43 |
| Posted: Thu Apr 24, 2008 6:05 am Post subject: |
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| Ah ok, now I understand. Thank you. |
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| dezldave961 Total posts: 808
Dave P.2004 Regal GS Joined: 23 Nov 2003 Location: Omaha, NE (was Rome, NY long ago) Age: 41 |
| Posted: Thu Apr 24, 2008 8:08 am Post subject: |
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Primary reason: engine bay clean-up... other reasons: fuel trims like to go negative while it's activated after a fill-up, and some folks seem to not wanna wait 5min to start their tuning... The weight thing is JohnC's reason. 
- Dave
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2004 Regal GSX - YouTube channel Stattama T67BB, A2W IC, ST5, heads, L32, GMR diff/chain (11.46 w/ Z7 T66, IS3t cam)
2006 Grand Prix GXP - K&N intake and mufflers only, basically stock for me
2012 F-150 EcoBoost SuperCrew 4x4 - stock DD and roadtrip vehicle
1998 Daytona GTP #838 - I/C*d MP112 L26 - Rust in Peace, engine saved |
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| ROSS3R Total posts: 1376
Kenny Rosser2000 Grand Prix GTP Joined: 07 Oct 2004 Location: Binghamton/Vestal, NY Age: 43 |
| Posted: Thu Apr 24, 2008 4:29 pm Post subject: |
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| Anyone know what is the code(s) I need to delete for the EVAP code deleting? |
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| seen96 Total posts: 2033
Drag Radials Suck on FWD.1997 Grand Prix GT Joined: 01 Oct 2003 Location: elbows deep in 4t65e Age: 46 |
| Posted: Thu Apr 24, 2008 5:10 pm Post subject: |
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some people remove the EVAP because its a pain to diagnose when you get a code, it costs a lot to have a shop troubleshoot and repair it, its easy to remove, it cuts a few pounds off the car, it throws a tune off sometimes, and you fail your inspection with those codes (depending on the state)...like good ol NY.
If the codes PCM has the EVAP codes not reporting, it wont turn your SES light on or trip a code within the PCM. |
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| ROSS3R Total posts: 1376
Kenny Rosser2000 Grand Prix GTP Joined: 07 Oct 2004 Location: Binghamton/Vestal, NY Age: 43 |
| Posted: Thu Apr 24, 2008 6:29 pm Post subject: |
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But what is the DTC(s) for the EVAP to be deleted?  |
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| seen96 Total posts: 2033
Drag Radials Suck on FWD.1997 Grand Prix GT Joined: 01 Oct 2003 Location: elbows deep in 4t65e Age: 46 |
| Posted: Thu Apr 24, 2008 9:25 pm Post subject: |
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These are almost all the EVAP codes. I cant remember off hand all the ones to shut off except P0440, and P0452..
• P0440 - Evaporative Emission (EVAP) System
• P0441 - Evaporative Emission Control System Incorrect Purge Flow
• P0442 - Evaporative Emission (EVAP) System Small Leak Detected
• P0443 - EVAP Purge Solenoid Valve 1 Control Circuit
• P0444 - Evaporative Emission Control System Purge Control Valve Circuit Open
• P0445 - Evaporative Emission Control System Purge Control Valve Circuit Shorted
• P0446 - EVAP Vent Solenoid Valve Control System
• P0447 - Evaporative Emission Control System Vent Control Circuit Open
• P0448 - Evaporative Emission Control System Vent Control Circuit Shorted
• P0449 - Evaporative Emission (EVAP) Vent Solenoid Control Circuit
• P0450 - Fuel Tank Pressure Sensor Circuit
• P0451 - Evaporative Emission Control System Pressure Sensor Range/Performance
• P0452 - Fuel Tank Pressure Sensor Circuit Low Voltage
• P0453 - Fuel Tank Pressure Sensor Circuit High Voltage
• P0454 - Evaporative Emission Control System Pressure Sensor Intermittent
• P0455 - Evaporative Emission (EVAP) System Leak Detected
• P0460 - Fuel Level Sensor Circuit
• P0461 - Fuel Level Sensor Performance
• P0462 - Fuel Level Sensor Circuit Low Voltage
• P0463 - Fuel Level Sensor Circuit High Voltage
• P0464 - Fuel Level Sensor Circuit Intermittent
• P0465 - Purge Flow Sensor Circuit Malfunction
• P0466 - Purge Flow Sensor Circuit Range/Performance
• P0467 - Purge Flow Sensor Circuit Low Input
• P0468 - Purge Flow Sensor Circuit High Input
• P0469 - Purge Flow Sensor Circuit Intermittent
You dont have to shut off half of these, probably like 4 or 5 total. I cant remember too well since, they'd show up, I'd just change the PCM to not report them.  |
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| studderin Total posts: 6272
John Csotello1998 Grand Prix GTP Joined: 01 Oct 2003 Location: 2nd gear burnouts Age: 42 |
| Posted: Thu Apr 24, 2008 10:26 pm Post subject: |
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my 98 has Evap, thank you very much
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New Era performance
01z28, M6 NA, mullet, T tops, siqqqq |
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| dezldave961 Total posts: 808
Dave P.2004 Regal GS Joined: 23 Nov 2003 Location: Omaha, NE (was Rome, NY long ago) Age: 41 |
| Posted: Thu Apr 24, 2008 10:39 pm Post subject: |
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I've passed inspection by turning off these for EVAP:
- 0440
- 0442
- 0446
- 1441
- 1646
- 1665
- 1676
The rest are either off originally (3 - no reporting), or aren't listed (in my '98 ).
Johnny, that's weight... see now you know where that last 0.3-0.4 mph was left for you to hit 120mph traps at IDD in '06.
- Dave |
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| studderin Total posts: 6272
John Csotello1998 Grand Prix GTP Joined: 01 Oct 2003 Location: 2nd gear burnouts Age: 42 |
| Posted: Thu Apr 24, 2008 11:22 pm Post subject: |
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thats slow
this is 2008 you know |
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| ROSS3R Total posts: 1376
Kenny Rosser2000 Grand Prix GTP Joined: 07 Oct 2004 Location: Binghamton/Vestal, NY Age: 43 |
| Posted: Fri Apr 25, 2008 6:00 am Post subject: |
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| Cool, Thank you Shawn and Dave |
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| seen96 Total posts: 2033
Drag Radials Suck on FWD.1997 Grand Prix GT Joined: 01 Oct 2003 Location: elbows deep in 4t65e Age: 46 |
| Posted: Fri Apr 25, 2008 3:30 pm Post subject: |
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no problem  |
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| dezldave961 Total posts: 808
Dave P.2004 Regal GS Joined: 23 Nov 2003 Location: Omaha, NE (was Rome, NY long ago) Age: 41 |
| Posted: Fri Apr 25, 2008 4:55 pm Post subject: |
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| studderin wrote: | thats slow
this is 2008 you know |
That's right, so let me know when you need a cameraman for the next round of PB's.
- Dave |
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