Q: I filled my car with E85 and now there are multiple misfires.

asked by on February 21, 2017

My gas tank was empty and I filled it with e85. Now it misfires, especially in high gear and under high load. I have gotten automatic range sensor, bank 1 o2 sensor low voltage, multiple engine misfire codes. I finally realized what I did after going through a full tank. I refilled with fresh 85 but the problem continues. I was going to start with replacing the o2 sensor but am fearful of chasing parts. Automatic Trans fluid looks good and no is full. Do you have any suggestions?

My car has 209643 miles.
My car has an automatic transmission.

Hi there. Sometimes E-85 can have several side effects, like the ones you’ve listed. However, before you start chasing parts, I would highly recommend having a professional mobile mechanic come to your location to complete an engine is misfiring inspection. This will allow them to pinpoint what’s causing this issue and recommend the right repairs if any.

Was this answer helpful?
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

Get a quote

What others are asking

The engine misfires at 2000 RPM if I accelerate too fast

Seems like the camshaft is making the ignition retard too much. Your system should read at -11 to -12 for retard timing. It is possible that your vehicle is probably reading around -13 to -14, which will cause the engine...

Car not moving after driving for a while

Hello. If you are losing throttle response as you drive then that can be caused by a number of things. If the Check Engine Light is coming on, then the computer needs to be scanned for codes. If no codes...

car surges when idle or in park. rpm bounce. car has cut off, but cuts back on.

It sounds like your idle air control valve could be failing. The idle air control valve is responsible for maintaining the proper amount of air into the intake while the vehicle is slowing down to a stop and resuming idle...

Related articles

The Best Used Cars to Buy If You're Over 50
Shopping Shopping for a car when you’re over the age of 50 begins to shift a bit, as your priorities tend to change. Suddenly it’s not so much about what the vehicle looks like, or how much space it has...
How to Modify the Alpine Navigation in an Acura or Honda
Modifying Modifying the original equipment manufacturer (OEM) navigation system of your Acura or Honda vehicle with aftermarket software is an easy way to add additional customization features to the already-installed system. Using a simple third-party computer program and a...
A Buyer’s Guide to the 2012 Honda Ridgeline
The The 2012 Honda Ridgeline is built on the Pilot SUV configuration and welded as a single unit, resulting in a five passenger truck that delivers a decidedly carlike ride. With fuel efficiency that is comparable to many midsize SUVs,...