Cold idle issues - Page 3

Toolapcfan · 06-10-2006, 12:22 AM

Quote:

Originally Posted by 200SXSE

I used to have this issue of it idling at 2,000 or more rpms from a cold start. Soon as I got a JWT ECU it fixed this problem. Not saying this the fix-all, but it worked for me without having to adjust the TB.

Same here. I put in my Calum VE programmed ECU and the VE maf and all my idles issues have been gone thus far, and that includes those that I had with the DE.

acnexs · 06-21-2006, 02:04 AM

hey im curious to know what would be a better off, currently i have 500 bucks. I swaped a sr20ve into my 200sx 97 the only thing that i have in my car is the engine and i havent done any mods. would it be better to buy a fujitsubo header or reprogram my sr20de ECU with JWT? what can i do first? Also my check engine light is on which piss my off but i think i got used to it

Sabre 200 Gxi · 06-21-2006, 02:11 AM

I'd say take the $500 and buy a managment system. The JWT upgrade is pricy in my opinion and will need further changes once you add other mods to the car.

I've recently stumbled on an excellent standalone system that uses all the std sensors etc. and has some features you could only find on some VERY expensive systems. Best part is it retails for under $450!!

drop me a pm and I'll send you more info if you're interrested.

acnexs · 06-21-2006, 11:32 AM

Hey Sabre thxs for the info. So let me see if i get it the JWT is to pricy which i dont have worry about it right now, right? so it would be a better to buy a managment system, What advantage will I have buying that? thxs

Sabre 200 Gxi · 06-22-2006, 02:30 AM

AFAIk the JWT ECU upgrades take VERY long and cost in the region of $600. It's all good and well but if you later change your cams or anything else then you may need to send the ECU for reprogramming again, If you change your TPS or MAF, it has to be reprogrammed again.

Management systems allow you much more freedom and you can tune it yourself or have a reputable tuning shop tune it to maximise the power and economy for whatever your setup is at any particular time. There are heaps of other features like setting your own rev limit, launch control, traction control, enough outputs to switch the vtec cams individually, etc. So you'd also be saving on not having to purchase MSD switches for your cams etc.

hpro123 · 06-22-2006, 02:32 AM

I did not get the standalone info, did I?

acnexs · 06-22-2006, 12:29 PM

mmm that sound good but i for got to mention that i already have the MSD switch, so can I still buy the management system? where can i find one?

shellos86 · 09-18-2008, 06:17 PM

Hi guys, i have a question
my sr20ve idles at around 800 rpm ...but when i have a the A/C on, and i slow down / come to a stop, the the rpm drops down to around 500 rpm and the entire car, vibrates alot, until i start moving again.
Could this be an electrical problem? that is not causing the idle valve to open when the A/C is on?

any suggestions on how to correct this problem? thanks for any help

SR20 Inside · 11-20-2008, 01:22 PM

Quote:

Originally Posted by shellos86

Hi guys, i have a question
my sr20ve idles at around 800 rpm ...but when i have a the A/C on, and i slow down / come to a stop, the the rpm drops down to around 500 rpm and the entire car, vibrates alot, until i start moving again.
Could this be an electrical problem? that is not causing the idle valve to open when the A/C is on?

any suggestions on how to correct this problem? thanks for any help

You are putting more load on teh engine so the idle drops, you can try raising your base idle by 100-200 RPMS so that when you have the A/C on it doesn't lower your idle so much or you can also try installing lighter pullies which tend to help with that. You may also try regrounding your engine to the battery and to the cars chassis.