Hey all
I’m hope you guys can help me figure this out. It has been plaguing my 4Runner for a while now and it’s driving me nuts. It has just over 154k miles and it bogs under heavy acceleration as well as while when it’s in neutral and you press hard on the gas. Not only this but it’s even searching for idle. I’ve only had this happen once and it stopped searching when Put my foot on the throttle. I’ve also had to stall on me once while accelerating from a stop, and once while coming to a stop. The strange thing is that it starts right back up like nothing ever happened. Other than this it drives completely fine. I would like to mention is that it has Doug throuley headers but this issue began well after they were installed.
I’ve tried some troublshooting myself and this is what I’ve noticed. I don’t believe this is related but it’s low on coolant after being filled up not too long ago. Maybe coolants getting into a place that it shouldn’t be? I also went to remote start it a few days back and it refused to start. The engine would turn but not start for some reason. The second time I used the key and same thing. It would just turn and not start. It eventually started on the third try with the key. Also no check engine lights. I have no idea what’s causing this and my local mechanic can’t seem to figure this out either and it’s driving me insane. I’ve been told to check for spark, air, and fuel but becides that I don’t know what else to check for I’m hoping that you guys can shed some light on the situation and provide some input.
I tried uploading the files but it would let me. Here are the Imgur links.
Searching for idle while parked - Album on Imgur
Imgur: The magic of the Internet
Edit:throttle body was replaced today. Truck still bogs and idle fluctuates constantly while the AC is on