My mechanic says I do.
2006-12-15 15:45:08 · 6 answers · asked by Bruce B 1 in Cars & Transportation ➔ Maintenance & Repairs
I would like to see the results of all 5 gasses (O2, CO2, HC, CO and NOx) at both the 50/15 and the 25/25.
That would give me a lot clearer insight to the need for a cat.
There are tests that can be performed to determine if the cat has failed, or if the issue is fuel too lean, timing is out of range, if the MAF or MAP are out of range. What was the engine coolant temperature during the test? Is the EGR fully functional?
There are so many variables here.
What is the make, model, year, engine/trans etc. There are some vehicles that are notorious for NOx failures,and there are factory/dealer remedies for them.
E-Mail the results of the test to me, and I will reply with my best insight and advise.
Russhess@sbcglobal.net
Good Luck and Merry Christmas
2006-12-15 18:02:49 · answer #1 · answered by Ironhand 6 · 0⤊ 0⤋
NOx Is higher in leaner burning engines today. The catalytic converter is designed to reduce NOx and carbon monoxide. Since your computer controls the fuel and ignition system the only thing you can do is be sure that it's tuned up, oil changed and no mechanical problems. If those items are OK than its most likely the catalytic converter is bad.
Most vehicles will except an aftermarket universal weld in type that usually cost less than $300 to install at exhaust shops. Your mechanic probably gave you a quote for an original style replacement.
2006-12-15 15:58:20 · answer #2 · answered by Anonymous · 0⤊ 0⤋
I think you should get a 2nd opinion from another mechanic. Unless your catalytic converter was physically damaged or cracked, I don't think that is the first thing to replace.
And $750 is way too high for a new cat conv - unless your car is an expensive European car and the only CC that fits is one from the factory. An OEM CC should cost closer to $100, installed.
Check these items as well:
temp sensor
thermostat
O2 sensor
plugs/wires (causes misfire)
fuel pressure regulator. Check the vacuum hose for leaks.
High N/O can be caused by a nonfunctioning EGR valve.
2006-12-15 17:48:10 · answer #3 · answered by Tom-SJ 6 · 0⤊ 0⤋
You better find another "mechanik" cats. don't cost no $750. You can get a complete exhaust system less than that. Check a few auto supplies and see what a cat. costs. Get a second opinion before replacing it.
2006-12-15 15:59:11 · answer #4 · answered by tronary 7 · 0⤊ 0⤋
yes an OE cat for an obd two system can certainlly cost that much, you may find an exhaust shop to install an after market cat for less but it may only be 50% effiecient and next time around for emissions test you need to replace again.
2006-12-15 16:04:03 · answer #5 · answered by russ G 3 · 0⤊ 0⤋
I have failed my emissions before and needed to replace my catalytic converter........but it was waaaaay cheaper than that!
2006-12-15 15:55:23 · answer #6 · answered by miszilla 2 · 0⤊ 0⤋