Hesitation at exactly 2k rpm

[knarxed]

Sometimes my car hesitates and jerks pretty bad. When it is running pretty bad, I'll sit at a red light or w/e and rev it up to 2k rpm's. It'll start to bog down and hesitate to 1.2k rpms.

On the other hand, it will drive fine and smooth through a trip and I can rev it around 2k and up at a red light no problem.

I haven't narrowed it down yet but anyone have any ideas? Thanks.

[iwishiwas-all*]

im having very similar syptoms, its only liek every once and a while then other times it will be fine.
weird.

[nissanguy13]

check your mafs, wiring, and timing. what engine are you running? If it's turbo'd it could be a vaccum leak.

[johngriff]

leak after the afm.

Coolant temp sensor.

AFM solder joints.

/thread.

[iwishiwas-all*]

i was thiking coolant temp sensor because it seems to happen for me when it is hot out., but my other problem is my stock sr pigtail is severely suspect.
is it possible to order that new?

[johngriff]

pig tail, like bacon in the engine?

[MELLO*SOS]

lol.

What codes are stored on the ECU?

[hellaflush]

o2 sensor

they work their hardest between 2-3k rpm

just replaced mine which got rid of my:

spluttering and wouldnt rev above 2-3k rpm for first minute of driving wether it was warm or cold start

flat spot in rev range between 2-3k rpm whilst driving

150km to a tank of fuel - shitass fuel economy

[knarxed]

Speed sensor code.

I'm gonna change my o2 sensor.

thx

[johngriff]

Speed sensor code.

I'm gonna change my o2 sensor.

thx

HUH?! :keke: