Another neat case study, featuring a 2000 Toyota Tacoma with the awesome 3.4L V6 Quad Cam engine.
Customer complaint is an intermittent rough running, loss of power, and a check engine light. Let’s see if we can catch this truck in the act and 100% verify the fault.
Enjoy!
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I have error code p0303 but on cylinder 3. I replaced the spark plugs, wires, coil packs, and it has new headgaskets. All thats left are the injectors but hopefully that is it…
I had a misfire on number 5 plug and found it to be just the plug it’s self and replaced all six and wow it’s running great. Truck has 287k on it.
This was a great vid, very through. I ended up replacing all my injectors with eventually the same 302 code on cylinder 2. I'm still looking into it.
Awesome this is precisely what my 02 4 runner is doing. It randomly misses but super rarely and in my case it’s not causing a CEL. it’s happened twice now in about 1,800 miles. I’m sure it’ll get worse just hopefully not before spring when it can be down all summer if need be as I have a Mach 1 to drive.
Since BBB industries stopped offering free diagram access, anybody would suggest a similar service . Appreciate any response
That video is one of the finest examples of an automotive repair and tutorial video ive seen. You are professional cover all details. I learned so much .I have 98 4runner 3.4L same error code. Man I'm lucky to have the same exact problem.
Love your troubleshooting and editing. "What about without a lab scope?", Ivan asks. Well, back in the day, we used a STETHOSCOPE and a noid light.
Hi
I need help my car Toyota runner 05 misfire 4 v6 4 liter I Changed new all part s and 0ne ingnition coils 4 ready but some time light come up
Misfire again please help me ideal thanks
Is it possible that tiny debris caught in the injector's micro filter could create a fuel blockage? This would explain how the resistance was in spec, and perhaps also why a cold start would run just fine.
Excellent video of a proper Diag. Cover almost all bases.
Of the four personality types, I'm betting this guy is an Analytical-Analytical.
I replaced on mine bank five 3 times and still get sputtering any ideas
Where are you located
You were perfect on your resistance numbers but they're only perfect at about 68°. Is there a formula for resistance in relation to temp? Just completed this exact job this morning on a tundra. Nice video
Great video and information. Thank you!
I had a bad coil that let moisture get in around the sparkplug which causes a bad misfire and huge loss of power
Same cylinder on my 2003
Quick question sr I have a 2 4l tacoma misfire on cylinder 1 I replace sparkplugs and still wires like 6 month old never replace injectors culdbe bad injector even hearing works??
that good idea