My YJ has failed 4 times. this last time was after having a new cat and muffler installed. the NO is running at 1314 at 25 mph. I need to know what to do next.
ullinghair: :surrender:
ullinghair: :surrender:
Thats too funny. I would live to solve this issue that way.I and retired and realize everyone can't do it, and don't want to be a smarta$$, but I solved all of my CA problems (smog included) when I moved to Tennessee last month.
Hard to beat $3.03/gallon gas and $26 for plates. :iamhappy:
Go yourself Jerry Brown!!!
Carbon on the pistons raising compression or holding heat. and a BIG one for our Jeeps, is an exhaust leak anywhere before the cat converter. This works against NOx because the leak acts like Pulse AIR injection, flooding the front half of the cat with O2, preventing it from reducing NOx, then all that O2 goes into the rear of the cat and is burnt up reducing HC and CO, making it difficult to see in the above sample.High NOx.
Caused by being lean. vacuum leak, exhaust leak, bad O2 sensor.
Engine running too hot, bad thermostat, etc.
Thanks!Wait for 2xs to see your post before you take any advice, in the mean time, post up a scan of your results
You aren't far from me. I'll let you know. Thanks.I passed, not by much but I passed. I think the leaky manifold took its toll on the cat, which is why it barely squeaked by. Have you checked for vacuum leaks, specifically the manifold gasket?
I'm in Elk Grove, let me know if you need a hand with the gasket, I'm a pro at it unfortunatley.
Yes, less oil allows more friction.ok, been a while since I updated. the welding went really well. got all the crac Curious, if it's low on oil, will that make it run hotter?
It was replaced a week ago along with the muffler. How can i tell if they put the wrong one in?Has your CAT ever been replaced?
http://arb.ca.gov/msprog/aftermkt/devices/eo/D-193-85.pdfEO: D-193-85 View PDFEO Date: 2008-12-04Manufacturer Name: Car Sound Exhaust System, Inc. (d.b.a. Magnaflow)Device: Series 39000 non-OBD II TWCDevice Type: OBD II Catalytic ConverterPart_Number:Model_Specification:Modification_Allowed:Remarks:Series 39000 1995 and older model year pre-OBD II category T-1 trucks None Contact manufacturer or distributor for specific vehicle application