P0113 P0102 P0352 P0302

Decided to go on Vacation. Took our 2015 Toyota Tundra SR5 5.7 V8 with a little over 250,000 miles on a fresh oil change 13 hours from Texas to Tennessee. We arrived at our destination Sunday night, no issues. Monday, went to a theme park and idled in line for about an hour when the truck started shaking from a misfire. A month earlier, me and my dad replaced the cylinder 7 coil pack and spark plug after it misfired, and it resolved the issue. Drove it from the theme park to an O’Reilly’s and they brought their reader out and they said it was Cylinders 2 and 4 misfiring. We then proceeded to buy two coil packs and spark plugs and fix it in the parking lot. An hour later of sweat and we had it fixed. Ran smoother than ever. Today is Wednesday. We were idling in a parking lot waiting for my mom and sister while shopping when it started to shake from a misfire. Went back to O’Reilly’s and they came and read it again, cylinder 2 misfire. Guy behind the counter said he could diagnose whether or not it was the spark plug or coil pack by disconnecting the wire connector while the truck is running, “If it kills the truck, it’s the spark plug, if it still runs, it’s the coil pack.” Went out there, disconnected it and truck limps along. Dude upsold us another coil pack saying the original was a crap brand, traded in the other coil packs due to warranty and still owed $20. After we then replaced that, the truck still misfired and the dash now read “TRACTION CONTROL OFF.” I asked the O’Reilly’s employee to come and check the code again, he said the trucks code wouldn’t be fixed for a couple days so it was useless to check it again. Left there, drove to advance auto parts. Turns out Advance Auto Parts fired the O’Reilly’s employee a month earlier for scamming customers like that. The Advance Auto employee brought out the code reader and the four codes that popped up were P0113 P0102 P0352 P0302. Cylinder 2 Misfire, and the MAF sensor. After a lot of deliberation between forums and google and the Advance auto parts guy, we decided to buy “Sensor Cleaner” and spray the MAF (Mass Air-Flow sensor which is located between the throttle body and engine air filter). It didn’t work. Decided to disconnect the battery for half an hour to clear the code. It cleared the codes but they came right back. Truck still rough idled and we figured out that the traction control plus the check engine light is LIMP Mode. We then decided to go ahead and replace the spark plug in cylinder 2 again for good measure, didn’t work. Here’s where we decide to change out the MAF sensor and finally, that didn’t work. All four codes are still firing. The truck still shakes while idling and violently shakes while driving. It is too late to rent and too late to take to a mechanic. Any help would be greatly appreciated.

 

Sounds like it might be your valve cover gaskets and/or spark plug tube seals. Did you have oil in the cylinders when you changed those spark plugs?

 

No there was no oil inside the cylinder. Replaced the valve cover gasket last calendar year.

 

What did the sparkplugs look like when you removed them ?

 

Clean. A little dark with the ones that have been in there for a while. The ones that we replaced Monday and yesterday, clean. Woke up this morning to rotten egg smell.

 

At 250k miles, once you had a misfire on cylinder 7 you should have done all 8 coil packs. Coil packs last a long time, but not forever. Once one goes the rest are likely close.

What brand are the coils and plugs from the parts store? In my experience, Toyotas can be picky about plugs and coils. OEM/Denso/NGK is pretty much the only way to avoid issues. Good thing is you don't have to pay dealership prices to get them.

https://www.rockauto.com/en/moreinfo.php?pk=2140918&cc=3310258&pt=7060&jsn=533

https://www.rockauto.com/en/moreinfo.php?pk=993042&cc=3310258&pt=7212&jsn=551&optionchoice=0-0-0-1

Toyotas are reliable for a reason, they use high quality parts. A "new" part is not always a "good" part.

 

The first three coils were Denso coils, for cylinder 7, 2, and 4, but when 2 went out again, they sold us an Import Direct. Took the truck to Firestone, they told us the Import Direct coil pack had no guts to it, and that it was a faulty coil pack.