DrHess

Greetings, gents. I have a '98 LX470, ~230K, and when it is fully warmed up and in closed loop mode, at full throttle starting in the low 3K RPM to 4K RPM, I'm getting fuel cut. It won't throw a CEL right away, but it eventually will throw a P1300 or one of the other close by codes, like a P1305. I have a dongle and Torque on my phone. No fuel cut, pulls like a freight train until it is fully warmed up and the long term fuel trims start activating. Then it goes into fuel cut just like a typical Toyota RPM limiter. It will even do it when in neutral or park.

I have tried:
New expensive coilpack (best O'Reilley's sold) at #1 when the #1 bad coil code was there. No change, and the next CEL said #1 and #6 were bad. New inexpensive complete set of coil packs and new iridium spark plugs. No change. Two new #2 oxygen sensors. No change. Clean MAF sensor. No change. New MAF sensor. No change. 2 new #1 oxygen sensors. No change. Disconnect battery to clear things and force a re-learn on the ECU. No change. No intake leaks.

I'm about out of ideas.

Suggestions?

hankinid

I'd post the question on Mud ih8mud.com 100 Series if you haven't yet...

DrHess

I've asked there too. Thanks.