I bought my Z w/ 12,000 on it a few months ago. I'm at 18,000 right now, and the car started bogging/hesitating today at seemingly random RPM ranges.

It happened down low, gave it gas, no revs, then all of a sudden it'd 'catch' and move forward. Happened in the mid-range, and I didn't push it up high. I don't have any CELs yet, but I am very confused. Any ideas as to what it could be?

 

clutch
air filter is dirty
MAF sensor unplugged

 

I was thinking clutch as well- but would that really be a cause of hesitation? During the .5-1.5 seconds of hesitation, the engine doesn't rev any higher, even if I floor it. If it were a clutch issue, it would rev, but not go anywhere- right?

 

if its under warranty i would take it to dealer ship. but check airfilters first.

 

Could be a dirty maf sensor. I'd buy a can of maf cleaner and see if that works. (and you can use the maf cleaner to clean other parts if it doesn't work lol)

 

Where do u get a maf cleaner thank u

 

So I have an appointment scheduled with Passport Nissan (Alexandria for the mid-A guys) for 11 AM tomorrow. I have a feeling the car is going to be perfectly fine, and that they won't be able to reproduce any problems, which is always how crap like this works, lol. So I'll run through the checklist tomorrow. So far I have:

Air Filters
MAF Sensor Unplugged / Clean it
Check fluid levels
Compression Test

Clutch

Last Resort:
Do TPS and idle air relearn procedure as specified in the FSM
throttle body reset procedure


And, where is the MAF sensor located? And how exactly do I clean a sensor without damaging it?

Thanks

 

Auto parts store. The stuff I have is made by CRC.

 

reset ecu! unplug the negative for 5 mins

 

There are 2 maf sensors on the hr motor. They are located in the intake tubes behind the air filter housing. Unscrew them and spray them with mass air flow sensor (maf) cleaner.

 

doubt thats the problem

 

You may be right but why not try it?

 

true.

 

If anything sounds like a fuel problem.

 

Bro I had something like that happen to me recently, I got lost W/O gas went to Hess (I know, I know) car did that till I went thru the tank, den it ran fine after Shell gas, hope you get it fixed. Regards.