P0303 Misfire

Yep Injectors seems like the logical thing to do down chain of effort/budget. I ordered a set of 6 reconditioned fuel injectors from MotorWest Performance ($330) arriving this weekend. Originally I was gonna buy OEM but it's about $200 per injector so I'm gonna go with the reconditioned ones, and no point of replacing just one injector since I'm already in there.

Along with the injectors, I'm replacing the upper/lower plenum gaskets /throttle body gasket/ cracked intake tube because all those components will be exposed to get into the fuel injectors. Will report back whether or not the P0303 goes away after test driving. A clear P0303 code would be a nice Christmas present.

 

Good luck and Merry Christmas. Let me know. I’ll be doing everything you’re doing In January

 

Surgery Done. CEL cleared on its own after I finished, I drove the truck for about 80+ miles, climbing hills, highway speeds, shift into different gears, no problem. Noticeable throttle response and gas mileage for sure. MotorWest injectors are made by Denso, very high quality for the price that comes with O-rings (plus 3 extra O-rings and sealant lubricant)

I followed Timmy's YT video. Gave myself 4-5 hours (had to pause midway working outside because it started raining lol), took my time cleaning the throttle body and plenums, I used a reg house vaccum set on a chair for the hose to reach, it was very filthy under the manifold. The only Special tool you'll need is a 3/8" crow foot extension on a regular torque wrench to torque the (3) x 17mm bolts for the fuel rails in a really tight spot, and there are (2) washers (per bolt) that you'll need to be careful inserting back into the fuel rails. You'll have leak and will do this all over of the washers arn't inserted correctly and torque to spec, connect all hoses and truck runs like butter

 

looking great man! Hope that solves your issue! Merry Christmas and Happy new year!