check engine light

Figured before i dig super deep i may as well list the codes i have and see if any of yall have had similar problems and what your fixes were (also to help people in the future with similar problems rather than just googling it on my own) KOEO (Key On Engine Off): 121 Indicates Throttle...

I have three unplugged plugs on the left side of my engine bay. They are between the airbox and firewall. Does anyone know what these could be for? One thing I am realized in the month I have had my 86 is that even when I turn the key on before completely starting I never see the engine light...

Need some advice on how to go about fixing this issue. I am getting codes 116 & 114 also but I think that is due to checking while the engine was cold. Getting code 998 as well which I think means the truck is running in default mode. Truck started cranking sluggish and if it is REALLY cold...

One of my inspection 'fail' items was no check engine light (key in run position, engine off). Last weekend I took out the cluster, replaced all 6 illumination bulbs and the check engine bulb. I couldn't see any broken filament, so I used a 9V battery & a couple test leads to make sure the bulb...

My 1992 Ranger is giving me a ISC code but idling has no problems. Checked for vacuum leaks and found a minor one and repaired it. Check engine light still comes on off and on only when im driving. Never when it is parked. I tested my ISC solinoid its reading at 9.5 OHMs. I am at a loss on how...

I am having a problem with my 95 ford ranger. It's an xlt and has the 4.0 v6 and is a 5 speed. My check engine light has been on and it comes up "Evap plug fault" when i plug a computer into it. The truck also has a tendency to have a rough idle(fluctuates) when I pull up to a stop sign, etc...

94 Explorer XLT, 4.0, M5OD, BW1354M Got around to pulling my codes today. Truck runs, but choppy under hard throttle (3k area and higher), and smells incredibly rich. KOEO: 337 - EGR position sensor above max voltage Continuous Memory: 181 - Adaptive fuel limit reached part throttle right...

my 1999 ranger has the 4.0 liter v6 and 4 wheel drive. my truck has presented the cylinder 6 misfire code twice in the last 6 months, which I have fixed with a new spark plug in that cylinder. The other day, however, it started stuttering heavily under load, and all of the sudden had very little...

So i have a 1999 Ranger Supercab, 4x4 with a 4.0 and a 5 speed. A few months ago it started stuttering when cold, when i would accelerate, but would go away after 5 or so minutes of driving, and often less than that when i would floor it. Yesterday, however, it started stuttering more often...

I have a 2001 ford ranger 2.5L with numerous codes showing, i believe i fixed two of them by changing the O2 sensors and replacing the fuse for them. The other codes that I am seeing are P1409 and P1451. What can I do to fix these? Would it be easier to just replace the parts causing the error...

Any one that can help I would appreciate it alot. I have a 2000 Ranger with a 4.0 V6. It has had a Check Engine Light on for a while. Scanned it and got a P0171 and P0174 code(Bank 1 & 2 system to lean) I was told to clean the MAF sensor and after the second or third cleaning in 2 weeks didnt...

tachometer quit check engine I need help desperately. I'm on vacation, driving cross country. I fueled up and upon leaving, I noticed my tachometer wasn't working. Within minutes the check engine light came on and it started sputtering like it was going to stall. If I shut it off, it runs fine...

So when the battery is connected the idiot light(check engine) is always on even with the key out of the tumbler what should i check/do to find out why this is? Also im trying to bypass the clutch interlock but when i jump the wires so it can crank it cranks with out the key in? :icon_confused...

about a year or so ago I fabricated a cold/ram air intake with parts I purchased at autozone. since then my check engine light has been on and its because the engine is running lean at terminal 1, which is the O2 sensor before the cat. has anyone else had this issue? Im trying to decide if i...

ok so my check engine light just randomly turns on and off, anyone have any clue why? there is no particular time it does this, sometimes it will go a week and never come on then one day it will just randomly shine. AND i got a new fuel pump and filter installed professionally and ever since i...

I have a 1997 ranger with a 2.3 engine. just recently the check engine light came on. i checked the code with my girlfriends dads code reader and it came back P1443. I looked the code up online and it said that the code was "Evaporative Emission Control System Control Valve" it also said that in...