Jerking RPM after hi rev

**bambino** · January 1st, 2011 05:03 AM

yung jerking , technically called misfire yun . most likely cause nya spark related, you probably need an auto technician not a mechanic to properly handle this trouble.

**Excalibur** · January 1st, 2011 12:12 PM

Originally Posted by speed unlimited

Bakit hindi mo muna palitan ang sparkplug at palinis ang MAF sensor maari ring dahilan ng problema ng makina mo.

sir napa linis na po when i had my pms sa speedy. replaced all the spark plugs and the mechanic cleaned the maf. ok nman cya for a while but after almost 2 mos. present nnman yung problem.

tinaasan yung idling (naging 1.4K) para daw wag mamatayan ng makina, a little high but like i posted earlier it was just for a while. took some extra mileage from my regular fc but the problem was solved. after quite some time nag normalize na yung rpm (1K) but the problem cropped up again.

**Excalibur** · January 1st, 2011 12:15 PM

Originally Posted by arieslhon

if problem still exist after replacing spark plug ang cleaning MAF, try to reset ECU and perform idle learn...

first start engine and wait to reach operating temp...
then turn off the engine and pop up the hood to locate fuse box and remove ECU fuse for about 10 secs.
after that replace the fuse and close box. start the engine and let idle for 10mins with closed hood and no electronics accessories are on.
after 10 mins. turn of the car, idle speed are not reset.
Start the car and go drive like you normally would so the PCM can relearn the fuel maps.

Ok sir, I'll try this one.
hope i can locate the ECU fuse.

**Excalibur** · January 1st, 2011 12:20 PM

Originally Posted by t2erns

obd2 na ba yung car, me capability ba na ma scan ito? mas maganda siguro ma read ang mga sensors para malaman ang most probable cause ng problem. remember may mga malfunctions na hindi basta mag flag ng trouble codes and check engine. i suspect a bad maf or air leak after the maf sensor and or iac issues.

sir ano po yung "obd2"??

saan po pwde magpa read ng mga sensors?
Im at maybunga, pasig right now at ang pinaka malapit po dito na shop ay rapide.
although madami negative feedback nga lang sa rapide but i tried having a radiator flush service from them, mukhang ok nman sila at very accommodating. about 2 weeks pa lang ata silang bukas.

**speed unlimited** · January 1st, 2011 12:21 PM

Tol ,sakit na talaga ng Nissan na makina ang Erratic idling. Marami pinanggagalingan Dirty IACV , Throttle body iyong sa akin sinubukan kong mag lagay ng grounding kit nag stable idle niya at maganda performace at lighting niya steady kahit bukas lahat accessory problema kasi iyong lumang stock na grounding kit iyong pinakakapitan naguumido rin iyan at kalawang . Suggestion lang.

**CivicVTi** · January 1st, 2011 10:15 PM

*Excalibur

You might want to have your ignition coil checked. It can also result in erratic idling when it isn't in good shape.

**Excalibur** · January 3rd, 2011 12:23 PM

Originally Posted by CivicVTi

*Excalibur

You might want to have your ignition coil checked. It can also result in erratic idling when it isn't in good shape.

ok sir. I'll have it checked by a nissan casa and get a price quotation from them.

hopefully it would not be that pricey. sa casa kasi it seems that they are bound to see more than what is needed to be repaired thereby incurring sky rocket costs.

**Excalibur** · January 3rd, 2011 12:28 PM

Originally Posted by speed unlimited

Tol ,sakit na talaga ng Nissan na makina ang Erratic idling. Marami pinanggagalingan Dirty IACV , Throttle body iyong sa akin sinubukan kong mag lagay ng grounding kit nag stable idle niya at maganda performace at lighting niya steady kahit bukas lahat accessory problema kasi iyong lumang stock na grounding kit iyong pinakakapitan naguumido rin iyan at kalawang . Suggestion lang.

ok nman cya sir wag lang susumpungin.

i noticed nga pala one time sinumpong then namatay makina, after i started it (nsa intersection nka stop yung light) after i switched the engine on biglang naging ok nnman yung andar (pati tunog) nya. may multo????! hahahha :beam:

**opay21** · March 18th, 2011 01:24 PM

Got the same problem although only occurs when the airconditioning system is on. After revving up, bigla ako mamamatayan minsan sa kalsada, which is very dangerous dahil tumitigas ung break pedal kapag nakapatay makina ko. Btw my car is diff though, it's a civic esi. Idle ko tuloy naka set sa 1.2k kasi pag naka on ac, it would drop 200-400 units, other than that, after revving, bagsak another 200 or 300 or so tapos balik dun sa menos ng 200-400. It's pissing me off, di namin madetect ung problema.

**ben_david19** · March 18th, 2011 02:08 PM

Originally Posted by opay21

Got the same problem although only occurs when the airconditioning system is on. After revving up, bigla ako mamamatayan minsan sa kalsada, which is very dangerous dahil tumitigas ung break pedal kapag nakapatay makina ko. Btw my car is diff though, it's a civic esi. Idle ko tuloy naka set sa 1.2k kasi pag naka on ac, it would drop 200-400 units, other than that, after revving, bagsak another 200 or 300 or so tapos balik dun sa menos ng 200-400. It's pissing me off, di namin madetect ung problema.

faulty servo/IACV symptoms.