subaru forester mass air flow sensor problems

#SUBARU FORESTER MASS AIR FLOW SENSOR PROBLEMS CODE#

There are 3 key signs that may indicate it’s time to examine your MAF sensor. This causes the engine computer to miscalculate the amount of injected fuel, causing additional damage to your engine. A contaminated or failed mass air flow sensor cannot measure the amount of air flow correctly.

I havn't been able to find any wiring diagrams that indicate voltage on the 02 sensor wiring that would help me figure out which wire would go where.I'm kind of at a loss here.The mass air flow (MAF) sensor, part of your vehicle’s electronic fuel injection system, is responsible for calculating the total amount of air entering the engine. The old 02 sensor has 2 black wires, a blue wire and a white wire. There's a problem though, the wiring on my new 02 sensor has 2 white wires, a black wire and a gray wire. There's no plug anymore, with that in mind the new downstream 02 sensor I have needs to be spliced into the system. I just jacked the car up and discovered that the connector was spliced. What was mentioned however was the faulty wiring on the downstream O2 sensor. Cleaned the Throttle intake somemore, has been done. They spent 2 1/2 hours diagnostically and couldn't find the underlying issue.

#SUBARU FORESTER MASS AIR FLOW SENSOR PROBLEMS CODE#

I'm having misfires on all 4 cylinders and a downstream 02 sensor code yet. I appreciate you all letting me comb your brains. I have someone coming out next weekend to test for vacuum leaks in the engine and he also wants to look at the EGR sensor. My understanding is P0519 can indicate a few problems including dirty IAC sensor or vacuum leak issues. P0519 Idle air control system performance P0037 Heated oxygen sensor heater control circuit low The car is still failing to maintain pressure after acceleration and RPMs dip or the car dies. I did replace spark plugs and wires just to ensure they aren't part of the underlying issue. It started to idle a little better post carbon flush but it didn't fix the issue. I was told my aftermarket exhaust had been installed poorly and was missing bolts, I checked myself and there was only one bolt missing that I could find. After that a code read out for the IAC sensor. They started with a carbon flush which didn't clear up the problem. There were a number of things in relation to suspension but for the idle issue they had a few ideas. I took it to the dealership, after they identified fifty odd things and presented me a $4000 dollar parts list I took it home. Love this car in the short 3000 miles I've driven it. Thanks, this is my first post and hope to learn more about my car and maintenance it well. Where would I find the MAF sensor on this specific model, and from what I'm experiencing does it seem to be an MAF sensor issue? From all that I've seen online this isn't the MAF sensor. Here are the pictures of what I thought I found to be the MAF sensor. I've searched around and tried to locate it, I have pictures of my most recent attempt to find it and clean it in an effort to keep the car running until my appointment and have a driveable car. My understanding is the MAF sensor can be cleaned and it might be the issue. Upon doing some research it occurred to me it might be the MAF sensor. It idles well for the most part until the mercurial issue arises. I was able to drive it home without issue after I let the car sit. When I got it to a stop light off the highway it died twice. It would continue to accelerate and function in 2nd, 3rd and 4th gear. Check engine light was flashing, indicating a misfire issue. More recently I was on the highway driving and it would not accelerate up past 70-80 MPH in 5th gear.

The check engine light coded out for 02 sensor and a cylinder 1 and 2 misfire. Anywhom I checked spark plugs and spark plug wires, they look to be in working order and do not need replacement (from my limited experience). It isn't all the time but when it acts up it stutters. About 2-3 months back it started having idle issues to the point where RPM will dip to 100 and then steadily toggle itself back up to about 1k. I do have an extended warranty and have it going into the dealership for repair come a week (backed up due to holidays). I own a 2003 Subaru Impreza 2.5 RS with 210k miles on it.

Subaru forester mass air flow sensor problems