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Old 09-04-2004, 01:42 AM   #1
AchmedRodriguez
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Default More AP questions

i quote the notes for the updated 91 octane stage 1 maps:

CEL Codes Defeated [WHEN USING AS BASE MAP]
(** means new to latest revision):
P0037 - Rear O2 Sensor Heater Control Circuit Low **
P0038 - Rear 02 Sensor Heater Control Circuit High **
P0137 - Rear O2 Sensor Low Voltage **
P0138 - Rear O2 Sensor High Voltage **
P0139 - Rear O2 Sensor Circuit Slow Response **
P0420 - Catalyst System Efficiency Below Threshold
P0545 - Exhaust Gas Temperature Sensor Circuit Low
P0546 - Exhaust Gas Temperature Sensor Circuit High
P1301 - Misfire Detected (High Temperature Exhaust Gas) **
P1312 - Exhaust Gas Temperature Sensor Malfunction **
P1544 - Exhaust Gas Temperature Too High **

OK, my question is this. Wouldnt i want a CEL to tell me that my EGT's were too high and that i may cause damage? Same question about misfire?

EDIT: i may as well ask this question in the same thread also. I have heard different answers to this one b4, so here ya go. If i have access to 93 and 94 octane, should i run the 91 octane map and play it very safe and use 93 or 94 octane? OR, would it be safer to run the 93 octane map and use 94 octane? (I dont care about the 5hp difference.) And yes i read in the notes that the 91 octane map is best if used with 91 or 92 oct. Should i assume that means it wont work better with 93?
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Last edited by AchmedRodriguez; 09-04-2004 at 01:49 AM.
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Old 09-04-2004, 02:45 AM   #2
eastcoastbumps
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The EGT sensor CEL's get triggered by aftermarket uppipes. So if you have an UP you'd want to get rid of the CEL. The stock EGT sensor isn't very accurate anyways. I'd recomend getting a good aftermarket EGT gauge. Go with one that has a warning feature like Defi.

All the maps are safe to run on 94+ octane. You won't be any safer running a 91 map with 94 in the tank. You'll just have less power. It would be just as effective to run 94 octane on a 94 map and be light on the go pedal.

Have no fear, Cobb maps are safe.

Pete
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Old 09-04-2004, 03:13 AM   #3
totoherbs
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If your not running an good egt gauge then you should not be moding your car.
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Old 09-07-2004, 03:19 PM   #4
AchmedRodriguez
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Quote:
Originally Posted by totoherbs
If your not running an good egt gauge then you should not be moding your car.
I wont argue with that, but ur average stage 1 owner does not have a EGT gauge and Cobb says nothing about using one for stage 1. That is why i ask the question.
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Old 09-07-2004, 04:20 PM   #5
WRX03
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I would question if removing P1301(misfire) and P1544(EGT high) all together wouldn't be wise on a car with the stock uppipe. They widen the range on previous maps for decatted uppipes, but remove Seems like the cure for decatted uppipe problems may lead to problems for catted ones?
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Old 09-07-2004, 04:51 PM   #6
Ironlung
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I run the stg 2 91 oct maps even though I put 93 oct in. It's a loss of about 5hp, but.... call it piece of mind, i worry about getting dirty gas and this makes me feel a little safer. And I also agree on it not being too wise to remove 1301 and 1544 if you are running a stock/catted uppipe. Someone on here just recently found uppipe cat in his turbo after he put the fire out.

Jeff
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Old 09-08-2004, 01:53 PM   #7
ScoobyNights
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Quote:
Originally Posted by WRX03
I would question if removing P1301(misfire) and P1544(EGT high) all together wouldn't be wise on a car with the stock uppipe. They widen the range on previous maps for decatted uppipes, but remove Seems like the cure for decatted uppipe problems may lead to problems for catted ones?
3rd this question and concern about the new version until Cobb replies to why it safe(backup sensoring ?) to remove these codes. I don't remember reading that AP port users where having problms with these codes.
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Old 09-08-2004, 01:59 PM   #8
AchmedRodriguez
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Quote:
Originally Posted by ScoobyNights
3rd this question and concern about the new version until Cobb replies to why it safe(backup sensoring ?) to remove these codes. I don't remember reading that AP port users where having problms with these codes.
Yes, for stage 2 or anyone else with a catless uppipe i can understand this. However, i would like a little bit of a warning before my uppipe cat was overheated and fed to my turbo. IMHO, a good chip should keep all of the fatory safety measures while improving performance. This chip obviously does not do that. I know the increased performance will take some longevity off of the engine, but i dont want to eliminate some useful warinings the stock ECU provides.
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Old 09-12-2004, 05:23 AM   #9
AchmedRodriguez
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BUMP
anybody have a good answer to these questions?
Vishnu's stage subzero is lookin better and better
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Old 09-12-2004, 09:13 AM   #10
davemade
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Quote:
Originally Posted by AchmedRodriguez
BUMP
anybody have a good answer to these questions?
Vishnu's stage subzero is lookin better and better
If you are so worried, install an uppipe as well. No worries.
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