Recent content by neilr

This was an interesting, albeit expensive, "who dunnit" mystery. I believe NGK is a quality product so I didn't think of the NGK O2 sensors at first. After asking around, I've heard stories of sveral different makes of vehicles being very sensitive to the brand of O2 sensors. Tee Jay what...

When I ran the scanner in real time with the NGK O2 sensors the L T fuel trim was VERY lean. Now with the Denso O2 sensors the L T fuel trim is right on.

I "think" I've fixed it. The first change was replacing the o2 sensors. The truck had been running fine, I just changed the sensors based on mileage. My mechanic got them from NAPA and they were NGKs. I figured NGK and Denso were the usual go to parts for Japanese vehicles, so I didn't...

Hi, Has anyone noticed a difference between Denso & NGK O2 sensors? I just replaced mine with NGK but not sure they're good. thanks, Neil

I did a compression test on all 6 cylinders before changing the injectors. Compression is good on all 6

OK, the celebration was a bit premature. :( When the old MAF was disconnected there were no misfires after the ecm went to default settings. when the new MAF was installed it ran smooth. truck was driven 20miles at different speeds and no codes. truck was let sit for a few hours and when I...

It turned out to be the MAF. Replaced the MAF and truck runs smooth with no misfires. My questions are: Why didn't it throw a MAF code? And given that the MAF is in the airflow to all cylinders, why did it only show a cylinder 2 misfire and not multiple cylinders? Either of the above could...

ok, checked the O2 sensors and they are the right ones. Haven't cleaned the MAF lately but will this morning. It's not throwing a MAF code though and if it was the MAF wouldn't it misfire on different cylinders and not just #2?

No haven't swapped injectors or coils but they are all brand new; I replaced everything and it still misfires #2. Plugs, wires, coils, injectors have all been replaced in the last 3 weeks There's definitely a spark getting to the plug. There don't appear to be any vacuum leaks. It started...

Hi, I'm hoping someone can help me out: 2000 4runner SR5 V6, stick shift, about 200K miles. I've replaced all plugs, wires, coils, and all 6 injectors. compression test: all cylinders good both O2 sensors replaced still getting #2 misfire. could it be the wire from #2 injector back to the...