Here a quick check on the relay. If the vehicle continues to run then the relay is bad or the ground wire from ecu bad or ecu not giving a ground
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Here a quick check on the relay. If the vehicle continues to run then the relay is bad or the ground wire from ecu bad or ecu not giving a ground
Tryied to make a video
Thanks for the informative link!What nobody has said is:I found this to be very interesting concerning detonation or pre-ignition.
Lots of good info.
http://www.misterfixit.com/deton.htm
No doubt about that! In my mower I've seen it turn to gel in as little as 3 weeks & turn to crystals in 6 months. Damn EPA sleeping w/corn farmers or something!!!! But if it was only s***ty fuel then a ton more 80 owners would be complaining.****ty fuel.... More prevalent than everyone thinks.
Ethanolized fuel is wreaking havoc on EFI systems.
As is fuel mixed with water which we are seeing a lot of in the south.
Thanks for the video!!!! Is the FPRelay all or nothing? Or can it work some & cause a lean issue? Thanks.
Mine cut off after about 2 seconds just like yours did. I noticed on my way to work watching my UltraGauge that when it starts to rattle the knock sensor doesn't lower the timing. It'll be pinging and the timing will be up to 23* to 25* advanced. The knock sensor should lower (retard) the timing low enough for it to stop pinging and should do it quickly. I can hold throttle steady for eternity with it pinging and timing doesn't drop. I believe there's 2 knock sensors in the 1FE??? Shouldn't it throw a code(s) if the knock sensor is faulty?The relay is not all or nothing. It has 2 modes of operation.
1 start and high load or acceleration
2 normal driving and idle
If yours runs with the resistor disconnected then there is a problem with the relay ( or less likely ground wire to ecu).
If the relays holding circuit is fried then you will be running the pump at max fuel psi which would cause the ecu to run the vehicle lean. In other words your fuel psi should be lower under most all conditions and that's what the ecu thinks- when your o2 sensor tells the ecu that there is to much fuel ( because of higher fuel psi) the ecu will shorten the duration of the injector causing a lean condition.
If this is good you may want to check the return line from your fuel psi regulator also to make sure it is not kinked or blocked. Just disconnect it and make sure you can blow thru it but take your gas cap off two. GL
I'd imagine it'd be waaaaay off. My UG is showing mine at +6* to 7* at idle. I'm guessing that's not my problem. Looks like my focus may be knock sensor?
What numbers should I be seeing on my short and long fuel trims via UltraGauge to know for a fact if I'm running lean?
My short trim , at idle, stays between +.78 and +3.91 but fluctuates between -3.5 and +4.9 at 1,800rpm. My long trim at idle is -4.7 steady but increases up to 0.00 when I idle up to 1,800rpm.
It appears these numbers are completely acceptable and show its not running lean, correct?