jeanlucpicard

Is it possible to program the 2004 Mach 1 onboard computer for air / fuel mix modifications without installing an aftermarket chip?

I picked up a 2004 Mach 1 and seem to be throwing a 2195 code. I thought it might be an aftermarket chip but after pulling the box there is no chip.

Any ideas would be appreciated.

Thanks

hiboostwoody

Trying to post the info for that code.

hiboostwoody

Code Description

P2195 Heated Oxygen Sensor (Bank 1 Sensor 1) Biased / Stuck Lean
Printer FriendlyP2195 Heated Oxygen Sensor (Bank 1 Sensor 1) Biased / Stuck LeanPossible Causes Setting Conditions
Check for air leaks in the Air Induction system (e.g., in the intake manifold)
Check for air leaks in the exhaust manifold and in the exhaust pipes
Check for air leaks in the EGR system and in its related hoses and/or valve
Check for air leaks in the PCV system and in its related hoses and/or valve
Check for engine vacuum leaks or the dip stick is not seated
Fuel System problem: damaged fuel pressure regulator or low fuel pressure
HO2S connector is damaged (check pins for damage, and for moisture)
HO2S has failed (it may be contaminated with fuel, silicone or water)
Induction System problems such as air leaks after the MAF sensor
PCM has failed
DTC P0300, P0301-P0310 not set; engine running in Closed Loop, and the PCM detected that the Bank 1 Heated Oxygen Sensor 1 (HO2S-11) indicated a lean signal, or that it could no longer change Fuel Trim because it was at lean calibrated limit.

This code sets in 2 Trip(s).
This code will turn on the MIL (Malfunction Indicator Lamp)
Malfunction Indicator LampThe Malfunction Indicator Lamp (MIL) alerts the driver that the Powertrain Control Module (PCM) or Transmission Control Module (TCM) has detected an OBD II emission-related component or system fault. When this type of malfunction occurs, an OBD Diagnostic Trouble Code (DTC) will be set. The MIL is located on the instrument cluster and is labeled CHECK ENGINE, SERVICE ENGINE SOON, or it is identified with the ISO standard engine symbol (which is a picture of an engine).
Prove-Out Test
The instrument cluster (IC) and other vehicle modules carry out a display prove-out to verify that all module controlled warning/indicator lamps and monitored systems are functioning correctly within the instrument cluster (IC). The instrument cluster (IC) and other modules such as the Powertrain Control Module (PCM) provide a timed prove-out while other indicators illuminate until engine start up. When the ignition switch is cycled to the "on" position with the engine off, the indicators illuminate to prove-out for 3 seconds.
Instrument Cluster (Gateway) Function
The instrument cluster (IC) acts as a gateway module by receiving information in one format and transmitting it to other modules using another format. For example, the instrument cluster (IC) receives the vehicle speed data from the PCM over the HS-CAN, converts the data into a MS-CAN message and sends (gateways) the message to other network modules such as the HVAC module, the tire pressure monitoring system (TPMS), the parking aid module (PAM), and the SJB. This enables network communication between modules that do not communicate using the same network (HS-CAN or the MS-CAN).
COMPONENT MONITOR DRIVE CYCLE INSTRUCTIONS
Do not turn off the ignition switch during the test procedure.
All Onboard System Readiness (OSR) codes are cleared when the battery is disconnected or when the Powertrain Control Module (PCM) is cleared with the Scan Tool.
This drive cycle can be used to determine if the Readiness code for this Monitor will run and complete, and if the MIL will remain off after the vehicle is driven.
Operating Ranges: Whenever a range of values is provided, try to operate the vehicle in the middle of the range. For example, if the vehicle speed range calls for 45-55 mph, operate the vehicle at as close as possible to 50 mph. Or if the engine speed should be 1,000-2,000 rpm, try to operate the engine at 1,500 rpm.
Scan Tool Data: There are certain Parameter Identification (PID) values that must be within range before this Monitor will "run". It can be helpful to pull up those PID items on the Scan Tool so an assistant can view them during testing.
The Readiness code for this Monitor defaults to "continuous" or "monitoring" because this Monitor runs continuously when the engine is cranking or running.
COMPONENT MONITOR PRETEST CONDITIONS
MIL is off.
No Emission related DTC's are present.
IAT sensor signal between 40-100ºF.
TEST PROCEDURE

Connect the Scan Tool to the data link connector (DLC). Turn the key on and bring up the ECT PID and IAT PID on the Scan Tool. Verify that the IAT PID is between 40-100ºF.
Use the Scan Tool to clear any stored DTC's and to reset the OSR Monitors. Note that DTC P1000 will appear once all of the trouble codes are cleared. Start the engine without turning off the ignition key. Allow the engine to run at idle speed for 15 seconds.
Accelerate at part-throttle to 40 mph and maintain that speed until the ECT PID reaches 170ºF (77ºC). Bring the vehicle to a stop, and then allow the engine to idle with the transmission in Drive (in Neutral for M/T) for 2 minutes.
Then accelerate at moderate throttle in Overdrive (if equipped with O/D) to 50 mph (80 km/h) and maintain that speed for 15 seconds. Bring the vehicle to a stop, change out of Overdrive, and then accelerate to 40 mph (64 km/h) and maintain that speed for 15 seconds. Bring the vehicle to a stop and allow the engine to idle for 15 seconds. Repeat this step at least 5 times.
Check for any Pending codes in the Generic OBD II section of the Scan Tool. If no Pending codes are set, the Component Monitor test is complete. If any Pending codes are set, refer to the appropriate trouble code repair information to make the repair.

hiboostwoody

That's the best I can do since I don't know how to do screen shots.

hiboostwoody

And to answer your question, yes, a computer can be modified with an aftermarket programmer and nothing will be visible. In fact, that's usually what people are refering to when they say "chipped".