problem after pod installation

[Bobby^]

I just had a POD installed on my 1996 GTS25T and now when i hit boost at about 4000-4500rpm it feels like you just slammed on the brakes then let them off and slammed ur foot on the accelerater. Its really violent. Is it possible that they have broken my afm because it didnt do this before they installed it? what other causes could there be. I have tried resetting my ecu but that didnt help.

only other mod is a 3" cat back.

Thanks.

[paulr33]

the 4000-4500rpm is when the boost solenoid opens and goes to 7psi, from 5psi

not sure why you'd get the slamming feeling? Maybe take the pod off and check your AFM for damage? Or try a friends 33 afm and see that goes, maybe swap pod and afrm from another 33

[51jay]

Sounds like the boost cut comming in ....what is your boost level

[Craved]

sounds right jay! once the pod goes on and removes alot of restriction it will let the turbo spin easier! happened to me when my pod broke open! started pushing 16PSI in and boost cut came on hard, similar things to what you've described bobby^ turn the boost down!

[Bobby^]

i have no boost control of any kind, factory gauge says 3.5psi :S

[Craved]

your boost guage is in PSI?

[Craved]

just that my standard guage reads what would be 3.5 in those readings, im running 11psi!

[sewid]

Dude, you forgot to plug in your AFM.

Happens to all of us.

If you did plug it back in, then go and unplug, clean the terminals and plug it back in. The car is currently in "limp home mode".

[TTT]

man if I had $1 for everytime this "cut at 4000-5000rpm" question I answered, I'd be rich..

with your new induction and free flowing exhaust, you are getting a higher boost.

therefore, you get a miss.

fix = take out your spark plugs, re-gap them to 0.8mm and put them back in and go for a thrash.. you'll see redline without a hitch.

[KamikazeR33]

sewid: with the afm not plugged in it wont rev past 2500 and will stall when u try and drive it

im with GTST - regap ur spark plugs and u should be right

[GunMetalR33]

You might also want to considder getting a Cold Air Box, as you engine is now sucking in all the hot air from you engine bay...

But, as for the problem mentioned I whould do what GTST said, plus re-set your ECU.

[Bobby^]

so you dont think it is the afm? but what i cant understand is that fact that it only happens once per gear and not all the time, mabye you gurus are right. i have already reset my ecu and that didnt help. would a miss be really violent?

[GunMetalR33]

The reason you only get the flat spot from 4500 to 5000 is because you computer adds more fuel at this point to allow for the extra boost that your factory boost soliniod is adding. This flooding effect may now have been multiplied buy that fact that your air filter is flowing better. 4500-5000 is also the point in which the variable cam shaft kicks in which from my understanding will also allow a greater flow.

This prob is also caused by the ecu rev limiting but not the case for you if you have the stock boost controller. Ps, since you where mssing with the pod and stuff check to make sure that the hoses to the boost solinoid are on tight, if not then you are bleeding more boost then stock.

After changing the gaps in the plugs, make sure you re-set the ecu again as every time you are experiencing this flat spot your ecu could be retarding your timing which equals loss of power.

my 2 cents, hope this helps as I can remember how pi**ed off I got when I had ignition probs...

[snake]

Hey ive got no pod on my 33, but ive got a front mount and full exhaust (stock boost), when i hit about 6800 or there abouts, it feels like it has hit the injector cut out, could this be a similar problem? maybe i should gap the plugs down aswell?

[~Hypnotik~]

i have no boost control of any kind, factory gauge says 3.5psi :S

Hey there,

The factory gauge in the R33 doesn't read in PSI. I'm not sure what form it measures in as I don't have a Skyline. Possibly microbar or dyne/centimeter2??

[Milo]

mm/HG - millemetres of mercury.... Stupidest measurement ever! haha

[Bobby^]

so wahts that in psi?

[Penfold]

Well,

1 bar = 760 mm hg

so 3.5(x100mmHG) = 0.46 bar or 6.25 psi

[Bobby^]

The problem with my car was that mag and turbo had given me a shit pod filter. After spending 1.30hours in st hitech in new market, having changed the sparkplugs and ****ed around for ages they installed a apexi pod instead of the shit one that mag and turbo had put in, it was only 30$ more. The whole exercise cost me 420 including pod and sparkplugs (my old spark plugs were crap). Costly to say the least.

What we can learn:

-Mag and turbo are useless

-St Hitech kick ass

-Apexi duel funnel > all

at least mag and turbo gave me my money back after much persuasion.

[TTT]

What we can learn:

-Mag and turbo are useless

-St Hitech kick ass

-Apexi duel funnel > all

at least mag and turbo gave me my money back after much persuasion.

how about adding to the "What we can learn" list..

should have bought a $90 K&N panel filter to replace factory filter and have NO problems and better gain than what you have now.