Rough Idle

S

Steve S

Member
My 2011 EX35 has developed a strange idle problem. Once well warmed up (driven 10+ miles) and I sit at a stop for 30 seconds or so, the engine will stumble, drop about 50 RPM, then continue running with a rough idle, like a four cylinder engine. The dealer replaced the MAF sensors and that reduced (but didn't eliminate) the personality for a week. Now it has returned to the symptoms above. There are no engine light or codes.

Ideas?
 
Hi, did you ever solve this problem and if so, what was it. Mine is doing the same for about a year now.
 
I got almost the same on my QX50 2015 VQ37VHR BUT when ignition starting the engine. It's like going to switch off (stumbling) as if there is no power.

I checked the OBD2 read for error and got code P1235!

Now what to do ?
 
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