issue.... heelp asap

[SlidingSideways]

With that way, you have to make sure screw is set back to run properly, or cat light on dash (acts as engine check light that can flash error codes) can flash when hitting bumps in road. I use Nistune, as it's less hassle that way (don't have pull off kick plate in bottom of doorway, interior panels, unbolt and pull out ECU, which could pull loom out of plug if pulled on).

Skym, actually check out that page I posted. Having to pull the kick panel and taking out the ecu is old school. This way you don't have to remove a thing.... Just locate the consult plug under the steering wheel and bridge 2 pins. No led's no turning a stupid tiny screw in the back of the ecu, just bridge the pins for 2 seconds and count the flashes on the check engine light in the cluster. Boom, there's your code. Compare it to the code list and fix it.

H4x6, I had a similar problem, I checked the codes and I got code 12, airflow meter, so I tried to resolder it, and it was fried, so I went to the wreckers and bought a 96 maxima MAF and I've never had a problem with it since

Try the stickied thread "fix your hesitation" and go through the list. Lotsa handy ideas in there

[h4X6]

the 96 MAF was that a direct bolt in or did it require a retune?

[SlidingSideways]

Direct fit, same plug same color sticker (pink on mine) and same part number
I cleaned it with sensorkleen before I put it in and it cost 30$

Never had an issue
Read the number on your MAF and google it
That's what I did and I got a list of cars that that MAF came on, I took that list to the wreckers and voila a new MAF and problem gone gone gone

[h4X6]

Would the Maf between a r33 and r32 be the same? Cuz I've got a r32.

Sent from my Galaxy Nexus using Tapatalk 2

[SlidingSideways]

Won't be the same but google the number on YOUR stock MAF and I reckon you'll be able to find what your after

[h4X6]

but i was able to pull this of the ecu


24 - Throttle Valve Switch
23 - Idle Switch

edit///

wass able to solve the other error and get her idleing normally... just have one code to deal with now and not sure how to solve it... played with everything.... cleared all the codes, and this one keeps tripping

24 - Throttle Valve Switch

help?

[h4X6]

ok update again....

aacv plugged in, will NOT idle lower then 1200 no matter what i do...

when its unplugged i get a perfect idle when i set the screw,

does it need to be plugged in for anything? other then idle? with it unplugged will it effect emissions at all?

[h4X6]

And another update.

Aacv worked for a bit then randomly it changed the idle to 1500ish and refused to go back to normally. I took it off and cleaned to no avail.... suggestions?


Sent from my Galaxy Nexus using Tapatalk 2

[Skym]

When MAF fails, ECU can make engine idle at 1500rpm. But usually get MAF error code on ECU. Can unplug MAF, start engine and if high idle goes away, bingo.

Skym, actually check out that page I posted. Having to pull the kick panel and taking out the ecu is old school. This way you don't have to remove a thing.... Just locate the consult plug under the steering wheel and bridge 2 pins. No led's no turning a stupid tiny screw in the back of the ecu, just bridge the pins for 2 seconds and count the flashes on the check engine light in the cluster. Boom, there's your code. Compare it to the code list and fix it.

Still have to remove access panel to fuses under dash.

Thank you for telling me, but umm, I'm already familiar with that way. Autosparky showed me how to do it (I assume it's commonly known amongst auto sparkies who work on Skylines).

[h4X6]

Well how can a maf be good one second and then die another...

It'll idle fine then it will go up to 1800ish and refuse to go down... I unplug the aacv and then the idle drops again to about 400 so I adjust the screw and it will raise the idle to the perfect purr at 700ish. I plug the aacv back in and boom raises it to 1800 again.


Is the aacv really that essential? Especially for emissions? More concerned for emissions. Still got to get it air cared and want it running mint so I don't fail and waste the little money I have at the moment.

Thanks



Sent from my Galaxy Nexus using Tapatalk 2

[Skym]

When MAF failed on my car, it would idle at around 1500rpm when engine was cold or hot (tried to get it repaired, but they said unrepairable). Replaced MAF and problem solved. But on your car with error code shown above, it could be faulty TPS (or wiring to TPS), as if adjusted TPS wrong, could be making engine go lean hence rise in rpm.

AACV = Auxiliary Air Control Valve. It helps to kick rpm up when turn streering, raise idle rpm to around 1000rpm when aircon, light's, stereo, etc is on.

[h4X6]

Ya I'm thinking the aacv is gone... cuz like I said it'll idle fine at 700 and then jump to 1800 at a random time. As soon as I unplug the aacv it goes back to normal idle.


Sent from my Galaxy Nexus using Tapatalk 2

[Skym]

AACV might not be the cause, but be the result of something else that has failed that affect's the ECU, or idle rpm was adjusted wrong with diagnostic screw on side of ECU, as I think can adjust idle rpm higher in small increments when turning screw to right after being in idle rpm adjustment mode (need to consult a engine manual).

Engine manual -

http://www.jpnz.co.nz/afawcs0131170/CATID=24/SUBID=273/page=1/products.html

You'll know when AACV is a problem, as engine will fail to idle. That fact that it's idling fine says it's not a cause. Could try unplugging TPS, MAF, one at a time, before starting engine to see if it makes difference. But with TPS error code on ECU, that's where I would start to look, to find problem.

[h4X6]

What would the result be when I unplug the maf ? Should not start right?

Result of the tps unplugged?

Sent from my Galaxy Nexus using Tapatalk 2

[Skym]

With stock ECU engine will start, run, but ECU will revlimit engine to around 2500rpm. I did it by accident one time (forgot to plug MAF in) and found out later on it was a way to check for faulty MAF. It's a stock ECU only feature.

In theory engine should start, idle without TPS (just don't rev engine, as TPS is used for acceleration enrichment), but never tried it. With MAF, TPS, o2 sensor, ECU should use a preset voltage on ECU if they are unplugged, so engine can be started. I have tried MAF, o2 sensor, but not TPS. But some say it does work with TPS.