Q: 97 4.6 t-bird, 287,000 miles runs great Ithought, 02 sensor causing rich condition etc

asked by on June 16, 2017

this 97 v 8 bird was maintained pretty well and mostly driven on the highway, alot!!! It had a switched pair of plug wires, # 2 & 8 after that was discovered I figured the computer would eliminate the code it kicked out about # 8 misfiring. After the switch it is surprising how well it does run and great fuel mileage. Other than a rattling converter under the car it could'nt be a smoother and quiet car. Why 9 codes? will disconnecting the battery for a few make the codes go away? Thanks

My car has 287000 miles.
My car has an automatic transmission.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing


Experienced Mechanic?

Earn up to $70/hr

What others are asking

When Should Hazard Lights Be Used?
Hazard lights are used for emergency situations and to alert other drivers to issues such as poor road conditions or vehicle breakdown. They are suggested in situations like heavy rain or blinding snow when you have to reduce speed for...
How do I partially turn off the electronic stability control (ESC)?
To partially turn off the electronic stability control (ESC), briefly press and release the “ESC Off” switch on the instrument panel. The ESC Warning Light will illuminate to let you know that the system is partially off.
Choke not releasing upon cold startup.
Hello, the choke relies on 12v heating element, as it heats up it allows the idle speed cam to lower, allowing the idle speed to decrease as the car warms up. If the heating element has failed it will cause...
Problem with second gear
From the information provided on your Chevy Camero, it appears that you need to adjust the Throttle Valve (TV) cable (https://www.yourmechanic.com/services/adjust-throttle-valve-cable). This TV cable on your Chevy Camaro controls hydraulic line pressure, the shift points, the shift feel and throttle...
Car won't start after alarm went off, 2001 Hyundai XG300
Hello there, this is a rare issue on the Hyundai XG300. The most likely causes would be a security control module, wiring fault, or a shorted wire. Any of these could cause the security system to engage while driving like...
Power steering failure - 2012 Porsche Panamera
It is possible that the steering rack, which mechanically moves the steering links to the wheels, has been damaged. Have your steering checked by Porsche (if still under warranty), or by a professional mechanic - like a certified technician from...
car won't start.
A possibility is a faulty ignition switch. If the switch opens after the car starts, the engine will shut off. But, that is just a possibility and a diagnostic would have to be performed to rule that in or out....
Have a 2006 Lexus IS350 with a code of P0420 saying catalyst System Efficiency Below Threshold Bank 1
Hi Phoebe. Thanks for contacting us today. When the oxygen sensors have readings that are similar to each other, it is an indication that the catalytic converter is not working as intended. If the voltage of the downstream oxygen sensor...
My car keeps having hiccups will driving and at a red light it revs up
Erratic engine speed is often referred to as "surging" or "hunting". The causes include a faulty idle air control valve or circuit (IAC), a faulty ECM (not common), faults in the fuel pump control circuit, defective spark plug(s) or ignition...

Related articles

How Car Keypad Locks Work
Pioneered Pioneered by Ford, keypads let you lock, unlock without keys Pioneered by Ford, keypad door systems began appearing on high-end car and SUV products in the early 1980s. Ford took advantage of the then-new digital computer revolution – the...
A Buyer’s Guide to the 2012 Ford Focus Electric
In In 2012, the Ford Focus Electric model went a step farther than other eco-friendly cars. Instead of creating another hybrid model, Ford chose to offer a fully electric vehicle with a very impressive range of 76 city miles and...
2012 Ford Escape vs. 2012 Honda CR-V: Which One Should I Buy?
SUVs represent one out of every three vehicles sold in 2012, making them one of the most-purchased types of vehicles in the country during that time period. Compact SUVs are a sub-class that are slightly smaller and offer the most...