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> Readiness Monitors not ready?, trouble passing state inspection
ZeroRT
post Feb 27 2007, 07:25 AM
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2001 dodge stratus
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im having trouble getting my '01 strat to pass state inspection which everyone knwos cant be avoided..
the car was recently in the shop and got new engine (35000mi)


i just took the car to see if it would pass inspection yesterday and it failed.
they reported the same problems it was reporting before we fixed it, the sensors.

heres whats reading bad the first time (before repairs)

OBD Inspection:
MIL COMMANDED ON
5 TROUBLE CODES REPORTED:
P0175 System too Rich (Bank 2)
P0171 System too lean (Bank 1)
P0134 O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
P0340 Camshaft Position Sensor Circuit Malfunction
P0355 Crankshaft Position Sensor A Curcuit Malfunction

after getting that, every issue listed was fixed and even a new ECU was put in (mechanic thought that maybe it was that because the sensors were brand new)
after replacing every sensor there and with the new ECU, i took the car to have it tested again.

EXACT same report

i know that the car has to go through its self-diagnostic tests while its driving to get the readiness monitors ready and i was told that it finishes its cycle in 200 miles.

this may or may not be true but it's my understanding, please correct me if i'm wrong but: the issue may be fixed but because the computer still thinks they arent fixed its reading like they arent fixed.

this much i know is true: If a mechanic clears the trouble codes, the readiness monitors will also be cleared. The vehical will then need to complete a diagnostic drive cycle in order to reset the readiness monitors before it is returned to the station for a retest. FAILING TO COMPLETE THE DRIVE CYCLE CAN CAUSE THE VEHICAL TO FAIL THE RETEST IF MONITORS ARE NOT SET TO READY
readiness monitors are also cleared when a battery is disconnected.
Some self diagnostic tests will not occur until you have driven the car at highway speeds for a certain length of time. Others will not occur until you have driven the car a number of drive cycles of warming up to normal engine temp. then cooling back down.

on a 2001 vehical in TN, it will fail if 2 or more or any emission critical monitor is not ready.




my check engine light has not come on which makes me think the car is still not finished with the self diagnostics..

if anyone can shed some light on this very annoying issue please please do



(it's got me stuck driving the car with a 2 month expired temp tag)
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XCR
post Feb 27 2007, 08:24 AM
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The driving cycle isn't completed in 200 miles.. There are 6 driving cycles depending which system you're testing/resetting laid out in the service manual. Its a lot of crap for me to type in right now though, PM me if someone else doesn't type it out..
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ZeroRT
post Feb 27 2007, 09:55 AM
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QUOTE (XCR @ Feb 27 2007, 11:24 AM)
There are 6 driving cycles depending which system you're testing/resetting laid out in the service manual.
*



thanks for replying but all i'm seeing in the manual is the following

QUOTE
In most cases, a reasonable mix and amount
of normal city and highway driving and at least one
overnight-off period will be required to prepare your
vehical for this check;...
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XCR
post Feb 27 2007, 11:09 AM
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owners manual isn't the same as the service manual..

Had a few minutes, here's a copy/paste of the overview section..


Purpose
The Readiness function also referred as I/M
Readiness or I/M Flags indicate if a full diagnostic
check has been "Completed" (is "Ready") for each
non-continuous monitor. Enhanced I/M State
Emission Programs will use the Readiness status
(Codes) to see if the vehicle is ready for OBD II
testing. "Incomplete" (Not Ready) codes will be one
of the triggers for I/M failure.
Overview
The engine control module (ECM) <M/T> or
powertrain control module (PCM) <A/T> monitors the
following main diagnosis items and records whether
the evaluation was completed or is incomplete. The
Readiness codes were established for the I/M
programs, thereby confirming that the vehicle was
not tampered with by erasing the DTC's before I/M
testing. The Readiness and DTC codes can be reset
by disconnecting the battery or by erasing the codes
with a scan tool. For this reason all Readiness codes
must read "Complete" before I/M testing. When the
monitors run and complete, the MUT II will record the
Readiness Code as "Complete" (General Scan Tools
record as "Ready"). If the monitor did not run
completely, the system then reads as "Incomplete"
(General Scan Tools record as "Not Ready").
When the monitors run and complete, the MUT II will
record the Readiness Code as "Complete" (General
Scan Tools record as "Ready"). If the monitor did not
run completely, the system then reads as
"Incomplete" (General Scan Tools record as "Not
Ready"). When the vehicle is operating normally and
the OBD II Drive Cycle is carried out, Readiness
Code will set as "Complete" on the first drive cycle. If
during the first drive cycle a fault is detected then, a
second drive is required before the Readiness Code
will "Complete." If the fault is still there, then a DTC
will set.
Catalyst: P0421, P0431
Evaporative system: P0442, P0455
Heated oxygen sensor:
P0130,P0133,P0136,P0139,P0150,P0153,P015
6,P0159
Heated oxygen sensor heater: P0135, P0141,
P0155, P0161
EGR system: P0401
After the Readiness is "Complete," the technician is
assured that any DTC's associated with that monitor
will be displayed if the system has a problem. That is
why some State's I/M programs require the
Readiness Code as "Complete" before they check
for DTC's.
NOTE: After a repair is mode for a DTC the
technician should drive the OBD II drive cycle
checking that the MUT II records all Readiness as
"Complete".
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ZeroRT
post Mar 15 2007, 06:35 AM
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oh hey i forgot to thank you, you saved me (IMG:http://www.2gstratus.org/forums/style_emoticons/default/happy.gif)

thank you very much
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ViperMan
post Mar 20 2007, 01:09 PM
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Did you get this solved yet?

And did I read that right - you replaced the ENGINE at 35,000 miles??? Or was that clarified later and I missed it...

You can definitely run all the readiness monitors within 200 miles. You can do it within 20 miles if you know how the tricks. We do it all the time.

To me it sounds like part of your wiring harness got cooked or soaked in something. You're showing no activity from an 02 sensor, and cam AND crank sensor malfunc's? Actually, something is definitely wrong there, because if the crank sensor were inop, the car wouldn't start! The PCM (Powertrain Control Module) uses input from the crank sensor to determine where the crankshaft is, and times fuel-spray and spark pulses off of that to actually start (and continue running) the engine.

It sounds to me like a wiring/harness issue. Possibly a problem with the harness that plugs into the ECM, or possibly more localized within the harness that runs to the CMP (Camshaft Position Sensor) and CSS (Crankshaft Position Sensor.) Unfortunately I cannot remember where those sensors sit - I THINK the CSS is near the tranny bellhousing on the front side of the motor... If a gasket puked, it might be spilling oil onto the wiring and causing issues - this would also cause the lean/rich issues.

Oh, best way to run a good trip is to make a few slow AND fast acceleration runs to about 50mph, then get up to highway speeds (at least 55-60) for at least FIVE minutes. Along the way, turn on the A/C for 2 minutes (this puts a load on the engine, which allows it to run a few extra tests.) Then coast down to about 30mph, speed back up to 50, then run around town for a couple blocks, both with and without the A/C on. Also, note that most faults within the engine take TWO trips to turn on the MIL light. So, after running your trip, turn the engine off for about a half-hour at least, and then run the trip again.

Hope any of this helps.

Jeff
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