Need some help
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Junior User
Joined: Jan 2008
Posts: 68
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Need some help
Ok here it is.
The Check Engine light has been on for 3 years since I bought it. I Lifted it about 2 yrs ago. Put 35" Tires about a 1.5yrs ago. Regeared it to 4.56 a little over a year ago. haven't messed with the speedometer. About a year ago i've noticed that I got about 12-14 mpg and that was driving about 70-75 mph. I can live with that. Could go alittle over 200 miles on a tank of gas. Recently I've noticed that my fuel mileage sucks...about 8-9mpg and easy to medium driving. everytime I drive it I have to watch the fuel gauge go down quite a bit
. Hell right now on this tank of gas i've traveled about 90 miles and it has less than 1/2 a tank left. Just about a week ago the codes read
311-thermactor air system inoperative
332-insufficient EGR flow detected
225-Knocked not sensed during dynamic response test
Just tuned it up..new wires, plugs, cap, fuel pump, fuel filter, coil. still nothing.
PLEASE HELP ME OUT.
The Check Engine light has been on for 3 years since I bought it. I Lifted it about 2 yrs ago. Put 35" Tires about a 1.5yrs ago. Regeared it to 4.56 a little over a year ago. haven't messed with the speedometer. About a year ago i've noticed that I got about 12-14 mpg and that was driving about 70-75 mph. I can live with that. Could go alittle over 200 miles on a tank of gas. Recently I've noticed that my fuel mileage sucks...about 8-9mpg and easy to medium driving. everytime I drive it I have to watch the fuel gauge go down quite a bit
. Hell right now on this tank of gas i've traveled about 90 miles and it has less than 1/2 a tank left. Just about a week ago the codes read 311-thermactor air system inoperative
332-insufficient EGR flow detected
225-Knocked not sensed during dynamic response test
Just tuned it up..new wires, plugs, cap, fuel pump, fuel filter, coil. still nothing.
PLEASE HELP ME OUT.
Hotshot
Joined: Sep 2001
Posts: 11,958
Likes: 228
If your speedometer has not been recalibrated for the tire size then the odometer is off as well. That will give you inaccurate mpg calculations.
The 311 code of thermactor air system inoperatve is probably the TAB and/or TAD solenoid. I had that code a few years ago and just replaced both the relays.
The 332 EGR code could be the valve or just the sensor on top of the EGR. The sensor is inexpensive and you could try replacing just it. I had that EGR code a long time ago and just replaced both.
I'm not sure about the 225. That might mean the knock sensor is bad, but I don't know.
The 311 code of thermactor air system inoperatve is probably the TAB and/or TAD solenoid. I had that code a few years ago and just replaced both the relays.
The 332 EGR code could be the valve or just the sensor on top of the EGR. The sensor is inexpensive and you could try replacing just it. I had that EGR code a long time ago and just replaced both.
I'm not sure about the 225. That might mean the knock sensor is bad, but I don't know.
Posting Guru
Joined: Jul 2009
Posts: 1,069
Likes: 1
From: Toledo, Ohio
Rebel Ford. I also get about 9mpg. I have 35's on my truck also, 3.55 gears. I havent been able to figure anything out as I have no codes up. My EGR was there but I fixed that. If you find something out keep me updated.. Until then im guessing its just something to live with.... I found out if I stick between 60 and 65 (about 55 and 60 on my speedo) I can get about 150 miles to the tank.
I know this didnt help, just wanted to share. The only two leads I got are a restriction and timing.
P.S According to the book, code 225 is "knocked not sensed during dynamic response test"
I know this didnt help, just wanted to share. The only two leads I got are a restriction and timing.
P.S According to the book, code 225 is "knocked not sensed during dynamic response test"
