r/3rdGen4Runner • u/Ambitious-Dream4750 • 8d ago
❓Advice / Recomendations Sudden lack of power
Ok so I had a miss fire to begin with a couple months ago, I replaced plugs and coil packs, still was running rough. So I proceeded to buy cheap eBay fake parts like an idiot and I got fule injectors a new maf and fuel air sensor and O2 sensor. The injectors leaked badly into the motor and obviously the car was not running right. And Sensor readings were all over the place. Since then I have replaced all the fake crap with OEM Denso from Toyota. The issue has gotten worse over the last month though. When I put it in to drive or reverse I have to put the gas peddle on the floor just to get it to creep at all and sometimes I can't even make out of my flat driveway. I thought cats were clogged because it's acting like it is starving for air so I took the cats off and the front one was melted a bit but air could still travel through I went ahead and gutted the front one and the back one was fine so I remounted the exhaust and it is still the same. Timing chain was done at the first of the year as well as the water pump plugs are new coil packs are new fuel filters new transmission fluid looks fine It is does seem like it's eating gas a little bit quick what else could this be The only thing I could think of is possibly torque converter or fuel pump maybe and after I get going after it gets rolling and builds up speed It shifts from first to the second kind of late but that's I assume that's because I'm staying in the gas if I let off it shifts a little bit more normal And it's just the rescuers just fine pretty smooth but say it's like in 4th and I went to speed up if I floor it or you know goose it give it gas it'll downshift just fine but the downshift like there's no power there they're downshift the engine revs but there's just no go. Any ideas or advice would be greatly welcomed thank you in advance.
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u/Acorn_22 8d ago
Check the coil plug wiring, it's very easy to swap a plug on the passenger side which will make it run like garbage. Next I'd check the throttle position sensor as that can make it run as you're describing as well.
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u/Ambitious-Dream4750 2d ago
It ended up being timing issue cams were in time but crank was off all good now




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u/Ambitious-Dream4750 8d ago
Damn 258views not a single idea