Mike_Metzger

Yes, I missed it because I noticed there was a spare TPS in the glove box. Swapped em out and it would barely run. So I put the original back on, but never actually tried just unplugging it. Once I did that, holy $hit does this thing rip!

Unplugged the Throttle Position Sensor and HOLY SHIT this thing flies!!!!!!! SOOOOOO STOKED!!!

Here is a link to a video of the issue that I posted on the Joyner Facebook page. Video link

Here’s a link to he vid on FB of the issue Video Link

IMG_4079.MOV

Just put the new coil packs in, didn’t fix it 😢 I’m going to thoroughly look for vac leaks and maybe get a new mass air flow sensor…..

Getting the coil packs today, fingers crossed. The plugs were at .050 I changed them to .035 and no difference 😣 Any advice on where to start looking for vac leaks?

I was hoping it was going to be that simple as well 😣

Gap was about .050, gapped them to .030 and ZERO difference 😕😕😕

I thought that too, but it’s just the super skinny tips make it look like the gaps are huge, did just pickup a feeler gauge though, we’ll see whet they are currently at. Any idea what recommended plug gap is? .035…..

Thought I’d post this in the general forum to try and get some more ideas. 2008 Joyner Renegade 800cc EFI Chery engine 1100mi Starts and idles fine, drives well until you actually try to go, then starts to sputter as if it’s starving for fuel. Does this no matter what fuel pressure I set it too. I’ve tried 35-80psi New fuel pump New fuel filter Cleaned injectors New thermostat Fresh Fuel Any smarty smarts out there with ideas?

Unfortunately that didn’t fix it. Same problem persists. Perhaps electrical/voltage issue? I have 3 new coils showing up tomorrow…. here’s a shot of my homemade injector cleaner.

I believe I may have found the issue, pulled the injectors, and while the outlets looked okay, clearly there is debris clogging up the inlet side. This HAS to be what’s going on. Going to clean them up and I’ll report back 👍

Here’s some photos of e engine

Same result, runs well enough to putt around, but definitely not running like it should. Maybe I’ll try and get vid of the sputter