ecu problem?

[TheBlueNinja89]

my car doesnt seem to be as fast as it used to be. also its been running a little rich for awhile now. i dont have a check engine light so im not sure what could be causing this. also it has no vaccum leaks. could my ecu be going bad and not providing a proper air fuel ratio?

 

[VelocitàPaola]

my car doesnt seem to be as fast as it used to be. also its been running a little rich for awhile now. i dont have a check engine light so im not sure what could be causing this. also it has no vaccum leaks. could my ecu be going bad and not providing a proper air fuel ratio?

It's more likely a problem with a sensor if you're sure there are no vacuum leaks. You should scan the ECU anyway. There may not be a CEL, but it could still be storing a code.

 

[TheBlueNinja89]

ok i will do that. if i get any codes i will post them on here. i will also record the other OBDII information I can get.

 

[TheBlueNinja89]

[URL="http://youtu.be/g-EcgV6o8qE"]http://youtu.be/g-EcgV6o8qEhere is a video of the freeze data that was on the car. other than this there were no CEL codes

http://youtu.be/GACzuhkez9w
here is the live data on my car.

 

[TheBlueNinja89]

sorry about that guys I didn't realize the videos were private. I fixed them so you should be able view them now. any help would be much appreciated

 

[bullettdsm]

No offense meant but the subjective nature of your info just makes it a little difficult to grasp onto anything. It "seems" is always a tough one. You say you are running rich, but why do you say that? (I'm sorry, my old man eyes haven't got a chance in hell with the vid ).

If what you are saying is true, then I would have a much longer list of suspects before I was suspicious of the ECU. Plugs, plug gaps, maintenance items like spark plug wires, clt, O2 sensor, injector problems, worn mechanicals even.

Any idea of your front O2 voltage readings?

MB

 

[TheBlueNinja89]

No offense meant but the subjective nature of your info just makes it a little difficult to grasp onto anything. It "seems" is always a tough one. You say you are running rich, but why do you say that? (I'm sorry, my old man eyes haven't got a chance in hell with the vid ).

If what you are saying is true, then I would have a much longer list of suspects before I was suspicious of the ECU. Plugs, plug gaps, maintenance items like spark plug wires, clt, O2 sensor, injector problems, worn mechanicals even.

Any idea of your front O2 voltage readings?

MB

from what i got on the obd2 scan the front o2 sensor voltage jumped between .175 and .705

and i replaced my plugs not long ago when i replaced my neutral safety switch. I gapped them to .032 which is what my repair manual said to gap them to. both O2 sensors I replaced over the last 2 years and havent thrown a trouble code since. my spark plug wires are also fairly new maybe 7-8 months old. I did have an injector go bad about 5 months ago and I replaced it. But haveing over 150K miles I wouldnt be surprised if it has worn parts. what I mean by "seems" is that it doesnt accelerate as fast and I dont feel it pull as hard when I pass or take off
And I say it runs rich because of lower MPG and I can smell gas sometimes but i never could before.