Question about 1997 Jaguar XJ6

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Xj6 monitor reset

Three of my IM Monitors won't reset in spite of several drive cycles. EGR, CAT, and EVAP What could cause this? 1997 XJ6 base

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I had the same problem. The dealer had to reprogram the ecu. It cost about $110.

Posted on Jun 11, 2009

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2 Answers

Cat and egr monitors will not set


Cant you disconnect the battery and the computer resets..Watch out for the alarm.

Jun 12, 2015 | 1996 Geo Tracker 2 Door

1 Answer

What is the drive cycle computer rest for 2010 corolla


drive cycle, why not just forget that. I do. (mostly)
why>?
what do I do, i reset the PCM with my $10 scan tool
when dont, all monitors are now reset, ALL !

drive cycles to finish off all monitors? (a goal for say smog testing)

that is easy most clear fast. running fast.
but not EVAP, can take up to 30min but
if fuel tank is fuel, it never completes EVAP until 1/4 lower, 3/4 full and less.
EGR tests? can be easy if you drive fast, and then coast to a stop
both tests cleared. (sans complete)
monitors are (no appliclable, not ready or complete)
to do smog, all must be complete and no DTCs. (rare exceptions)

the drive cycle means number of times it takes to set a code for one test monitor or clear one.
some newer cars take 2 drives to set them.
and is important, the FSM covers this.
why not post symptoms or reasons for asking.

just curious?, then read the ASE book on OBD2 technology.

alldata.com RTM.

Oct 10, 2014 | 2010 Toyota Corolla

1 Answer

1997 Dodge Caravan ECM will not go Ready, no trouble codes


In order to set the monitor it the drive cycle 2 trip criteria that means you need to have a cold start up and reach operating temperature then another cold start up with a operating temperature reached and the drive for each one is part throttle hold for 2 miles and a decelration for the catalytic to get ready.when the cat is ready the evap runs.If you are loosing monitor at key off and everything reset you can see the referee let them smog it. The EGR and EVAP are almost impossilbe to get ready

Feb 24, 2012 | Dodge Caravan Cars & Trucks

2 Answers

We took the car to air care and it was rejected because after work was done, the monitors were not reset yet. I was told to drive it around more and that it would reset automatically. He also said...


"drive it around more" is the solution. This allows the ECU to "learn" and store the operating conditions for emissions. 100km/ 60 miles is usually enough.

Sep 05, 2017 | 1998 Chrysler Sebring

1 Answer

What is the drive cycle for a 1999 vw jetta


The drive cycle is as follows
For all OBD2 VW's

OBD-II Drive Cycle Stages
The OBD-II Drive Cycle is an eight-stage course, as illustrated in the
chart on page 3. An explanation of each step is provided below.
Stage 1: Cold Start-The ECM determines the presence of a cold start
by comparing the engine coolant temperature to the ambient air
temperature during startup. The engine is considered cold when:
• Engine coolant temperature is below 122°F (50°C).
• Engine coolant and intake air temperatures are within 11°F (6°C) of
each other at startup.
During this period, the O2S heater, misfire, AIR, fuel system, and EVAP
monitors run.

Stage 2: Idle 2½ Minutes-Turn the air conditioning (A/C) and
headlights on to help the misfire monitor-the additional electrical loads
help even out combustion pulses. During this period, the O2S heater,
AIR, EVAP, misfire, and possibly fuel system (if operating in closed loop)
monitors run.

Stage 3: Accelerate-Prior to accelerating, turn off the A/C and
headlights (if possible). Open the throttle halfway until you reach
55 MPH (89 KPH). During acceleration, the misfire, fuel system, and
EVAP monitors run.

Stage 4: Steady State Cruise-During this portion of the cycle, the
O2S, AIR, EGR, EVAP, misfire, and fuel system monitors run.

Stage 5: Decelerate-Gradually coast down without applying the
brakes. Also, on manual transmission vehicles, remain in high gear and
do not press the clutch. During this period, the EGR, EVAP, and fuel
system monitors run.

Stage 6: Accelerate-Apply ¾ throttle until reaching 60 MPH (97 KPH).
During acceleration, the misfire, fuel system, and EVAP monitors run.

Stage 7: Steady State Cruise-During this period, the CAT, O2S, AIR,
EGR, EVAP, misfire, and fuel system monitors run.

Stage 8: Decelerate-Gradually coast down without applying the
brakes. Also, on manual transmission vehicles, remain in high gear and
do not press the clutch. During this portion of the Drive Cycle, the EGR,
EVAP, and fuel system monitors run.

You can try this a couple times, but if it doesn't work you should go to a VW specialty shop like the dealer or a shop that does mostly European cars and they can use the scan tool to force the car through readiness.


Oct 11, 2010 | 1999 Volkswagen New Jetta

1 Answer

NEED DRIVE CYCLE FOR 2004 CRV TO RESET CAT AND O2 MONOTOR


Here is the info

NOTE: The ignition key must not be on prior to the cold start otherwise the heated oxygen sensor diagnostic may not run.

1. As soon as the engine starts, idle the engine in drive for two and a half minutes with the A/C and rear defrost on. OBDII checks oxygen sensor heater circuits, air pump and EVAP purge.

2. Turn the A/C and rear defrost off, and accelerate to 55 mph at half throttle. OBDII checks for ignition misfire, fuel trim and canister purge.

3. Hold at a steady state speed of 55 mph for three minutes.

OBDII monitors EGR, air pump, O2 sensors and canister purge.

4. Decelerate (coast down) to 20 mph without braking or depressing the clutch. OBDII checks EGR and purge functions.

5. Accelerate back to 55 to 60 mph at half throttle. OBDII checks misfire, fuel trim and purge again.

6. Hold at a steady speed of 55 to 60 mph for five minutes.

OBDII monitors catalytic converter efficiency, misfire, EGR, fuel trim, oxygen sensors and purge functions.

7. Decelerate (coast down) to a stop without braking. OBDII makes a final check of EGR and canister purge.

Oct 02, 2010 | 2004 Honda CR-V

2 Answers

Reset computer in doege stratus wont pass inspection drove 50 miles and computer still didnt reset help


U have to operate the engine at all kinds of diff speeds and drive modes, it is called a OBDII drive cycle, here is how u do one.
1. As soon as the engine starts, idle the engine in drive for two and a half minutes with the A/C and rear defrost on. OBDII checks oxygen sensor heater circuits, air pump and EVAP purge.

2. Turn the A/C and rear defrost off, and accelerate to 55 mph at half throttle. OBDII checks for ignition misfire, fuel2_bing.gif trim and canister purge.

3. Hold at a steady state speed of 55 mph for three minutes.

OBDII monitors EGR, air pump, O2 sensors and canister purge.

4. Decelerate (coast down) to 20 mph without braking or depressing the clutch. OBDII checks EGR and purge functions.

5. Accelerate back to 55 to 60 mph at half throttle. OBDII checks misfire, fuel trim and purge again.

6. Hold at a steady speed of 55 to 60 mph for five minutes.

OBDII monitors catalytic converter efficiency, misfire, EGR, fuel trim, oxygen sensors and purge functions.

7. Decelerate (coast down) to a stop without braking. OBDII makes a final check of EGR and canister purge

Jun 02, 2010 | 2004 Dodge Stratus

1 Answer

Monitors not ready: Catalyst,Evap System, Oxygen Sensor, Egr Syst


Drive it some more. Has the battery been disconnected/replaced recently? The Inspection station should be able to print you out a drive cycle to get the monitors ready also.

Mar 10, 2009 | 1999 Dodge Intrepid

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