[gofstbuick]

Ryan87GN
If this is the I/M 240 system I worked with, that may not work, because this a constant volume sample system that draws the whole sample though the system and stores it in a bag and breaks the sample down into a percentage. The suction on the end of the probe is pretty strong.
Additionally, a report I'm reading appears that Ohio is using a idle test with ASM2525 (one portion of the CA test). I/M 240 is a different test, a 240 second test that runs the vehicle over 50mph. 2525 is a constant speed test wiht a constant load (25% of vehicle weight at 25 mph for 90 seconds. If you violate the drive trace for 2525 the emission result drift is not that critical and the violation period is quite liberal. If you don't drive the trace properly on I/M 240 (like not driving the trace smoothly), you may encounter problems, even though you don't have any drive trace violations. With I/M 240, who cares if the cat is installed, b/c if the cutpoints are anywhere close to federal test procedure (FTP) standards, if a cat is not installed or working properly the test will show. I don't mean to sound like a jerk about this, but I worked on the CA project for 2 years and I think I have a pretty good understanding of I/M 240