diagnosis help KA - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

orion::S14 · 03-22-2005, 10:15 AM

Sounds like it's dumping too much fuel at WOT. Why would you suspect a ring? They VERY RARELY go bad on the KA...broken ring lands are not uncommon under boost, or nitrous...but the rings are stout.

Anyway, steps to correct the problem:

1) Tuneup?

2) Check TPS and/or MAF function.

3) Change O2 sensor

4) Check resistance value of coolant temp sensor.

Assuming the engine isn't "broken"...your answer lies within those 4 steps.

- Brian

03-22-2005, 10:15 AM	#3
orion::S14 Nissanaholic! Join Date: May 2003 Location: Orange Park, FL Posts: 1,666 Trader Rating: (0) Feedback Score: 0 reviews	Sounds like it's dumping too much fuel at WOT. Why would you suspect a ring? They VERY RARELY go bad on the KA...broken ring lands are not uncommon under boost, or nitrous...but the rings are stout. Anyway, steps to correct the problem: 1) Tuneup? 2) Check TPS and/or MAF function. 3) Change O2 sensor 4) Check resistance value of coolant temp sensor. Assuming the engine isn't "broken"...your answer lies within those 4 steps. - Brian __________________ www.KA24DEvelopment.com