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2G Setting the monitors

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inthemidst

15+ Year Contributor
363
24
Aug 25, 2009
PALMDALE, California
Just want to know if anyone knows the exact specifics of setting the monitors I have an EPROM ecu in a 96 gst.
 
Ahh. Thank you for clarification. There were ECU's that were prone to this problem. Try the below procedure:
http://www.obdiicsu.com/Docs/DriveTraces/AppendixB.html

Catalyst Monitor Drive Trace
Pre-Conditioning Requirements:
MIL must be off.
Outside temperature must be above 14E F (-10E C).

Driving Procedure
1) Start the engine. Accelerate gradually to 45 mph or more.
2) Drive for about 5 minutes without stopping at highway speed (speed may vary).
3) Drive at a steady speed between 35 & 40 mph without moving the accelerator pedal for 90 seconds.
4) Decelerate with throttle fully closed for 10 seconds, accelerate gradually to 35-40 mph, then shut off.


Enhanced Evaporative System Monitor Drive Trace
Note: For Eclipse models with the Leak Detection Pump (LDP), use Chrysler=s LDP drive trace

Pre-Conditioning Requirements:
MIL must be off.
ECT must be 113E F (45E C) or less.
Outside temperature is between 41 & 113E F (5E C & 45E C).

Driving Procedure
1) Start and drive at 55-65 mph for 4 minutes.
2) Drive at a steady speed between 55 & 65 mph without moving the accelerator pedal for 150 seconds, then shut off.


If this does not work, off to the dealer you go. I do not believe that code readers will be able to set them.

Here is another resource for other things to try:
http://www.dsmtuners.com/threads/not-passing-smog-because-of-monitors.167675/
 
Last edited:
To the OP. I live in Palmdale. I own a 96 GSX. The monitors will NEVER set, not even the dealer can get it.
BUT - California has a document, I have a copy, it is on this forum. The document gives an exclusion to the monitors
test. My smog guy on 5th St west and Palmdale Blvd has been doing this every 2 years and he knows what to do.
The document is sometimes called appendix J and tells the smog people to simply do a tail pipe test and ignore the monitors.
If you want my help, private message me, I will be glad to help.
I live by the AV Mall.
Have the gas tank half full. Car warmed up. Just do the tail pipe test. All will be good.
 
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