: what is OBDII



mikeman711
07-20-07, 06:43 PM
what is OBDII and why cant anyone get a super/turbocharger to go in a cadillac. whats mainly stopping people from doing it

mikeman711
07-20-07, 06:54 PM
got to this website for some codes

http://www.cadillacfaq.com/faq/answers/dtccode.html

mikeman711
07-20-07, 06:56 PM
no if the cadillac wont let you put in a aturbocharger why did i find these codes
P0234 - Turbocharger Engine Overboost Condition
P0235 - Turbocharger Boost Sensor 1 Circuit
P0236 - Turbocharger Boost System
P0237 - Turbocharger Boost Sensor Circuit Low Voltage
P0238 - Turbocharger Boost Sensor Circuit High Voltage
P0239 - Turbocharger Boost Sensor 2 Circuit
P0240 - Turbocharger Boost Sensor 2 Performance
P0241 - Turbocharger Boost Sensor 2 Circuit Low Voltage
P0242 - Turbocharger Boost Sensor 2 Circuit High Voltage
P0243 - Turbocharger Wastegate Solenoid 1
P0244 - Turbocharger Wastegate Solenoid 1 Performance
P0245 - Turbocharger Wastegate Solenoid 1 Low Voltage
P0246 - Turbocharger Wastegate Solenoid 1 High Voltage
P0247 - Turbocharger Wastegate Solenoid 2
P0248 - Turbocharger Wastegate Solenoid 2 Performance
P0249 - Turbocharger Wastegate Solenoid 2 Low Voltage
P0250 - Turbocharger Wastegate Solenoid 2 High Voltage

i mean what are they for why whould cadillac put thes on if you cant put a turbocharger in

urbanski
07-20-07, 07:05 PM
merged into 1, your questions can be answered here.

dkozloski
07-20-07, 07:20 PM
no if the cadillac wont let you put in a aturbocharger why did i find these codes
P0234 - Turbocharger Engine Overboost Condition
P0235 - Turbocharger Boost Sensor 1 Circuit
P0236 - Turbocharger Boost System
P0237 - Turbocharger Boost Sensor Circuit Low Voltage
P0238 - Turbocharger Boost Sensor Circuit High Voltage
P0239 - Turbocharger Boost Sensor 2 Circuit
P0240 - Turbocharger Boost Sensor 2 Performance
P0241 - Turbocharger Boost Sensor 2 Circuit Low Voltage
P0242 - Turbocharger Boost Sensor 2 Circuit High Voltage
P0243 - Turbocharger Wastegate Solenoid 1
P0244 - Turbocharger Wastegate Solenoid 1 Performance
P0245 - Turbocharger Wastegate Solenoid 1 Low Voltage
P0246 - Turbocharger Wastegate Solenoid 1 High Voltage
P0247 - Turbocharger Wastegate Solenoid 2
P0248 - Turbocharger Wastegate Solenoid 2 Performance
P0249 - Turbocharger Wastegate Solenoid 2 Low Voltage
P0250 - Turbocharger Wastegate Solenoid 2 High Voltage

i mean what are they for why whould cadillac put thes on if you cant put a turbocharger in
The list is for all GM cars going back to Buick Regal days.

AJxtcman
07-20-07, 08:09 PM
OBD has been around since the 70's. In 1988 California required that all Automotive manufacturers provide a system which could identify faults in the vehicle's computer control system. This was called OBD I.
Also in 1988 requirements were set for a second generation of OBD, Designated ODB II. Federal law requires that all the automotive manufactures meet OBD II standards, which went into effect in 1996
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OBD II requires that the on-board computer monitor and actively perform diagnostic test on the vehicle emission systems. The Federal Test Procedure (FTP) set maximum allowable emission levels.
A Malfunction Indicator Lamp (MIL) must illuminate if a system or a component either fails or deteriorates to the point where the vehicle emissions could rise above 1-1/2 time the FTP standards.
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This has nothing to do with superchargers.
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This has to do with the federal standards.
If I can set a PCM to say it ran the EVAP test and past, but the car does not have an EVAP system this would be illegal.
The Manufacturers had to encode the software so it can not be hacked.

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The way I read the law is ANY TUNING OF A PCM FOR STREET USE IS AGAINST A FEDERAL LAW.
Just adjusting the spark curve would make the program non compliant with the Federal Certification that the PCM's calibration has.
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All the Custom Tuning Software is illegal for street use.
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I have GM federally certified programs and custom tunes