phillys2k

Starting up my car and sometimes ! it shakes and drops way low below 1 rpm, like it wants to stall. when i leave i can past 7k rpm to shift at 9 but if i drive past 10 min or so i cant past 7 k it just stopps not like a rev limiter stop but like a little pitch. I check out some searches and changing spark plugs might do the trick for the shaking. but couldnt find out y the only 7 k rpm =*(., need some help fellas alot will be appreciated

xviper

Are you sure your sister hasn't done something to your car again? (Couldn't help myself.)

Have a look at this. It may have something to do with your situation:
https://www.s2ki.com/forums/index.php?showtopic=253242

Try the MAP whack and ECU reset. If this fixes it, then take the above thread more seriously.
Also, your car may simply be having a brain fart due to a sudden climatic change in your area lately (air temp, humidity, air pressure). Sometimes this causes the ECU to have a hard time learning to adjust. It can take a few days to learn.

phillys2k

thanks viper for the comment about my sister viper! lol . imma try that right when i get home thanks

SIIK2NR

Question.....Could a loose throttle cable effect idle and rmp range?

phillys2k

the rough idle comes on sometimes not all the time i checked the cable its A ok but ill check it again

phillys2k

man reseted my ecu and battery terminal and still same damn thing wtf
! its been happening for 2 weeks ;afjda; man i need some help

xviper

Did you do the "MAP Whack"?
You don't need to disconnect the battery terminal to reset the ECU. You only need to pull the "BACK UP" fuse for 1/2 a minute.

Billman250

No. But a tight cable sure could.

phillys2k

yeh i did that also with a mapwack. Still same thing and im not passing 7 k rpm! wtkladjs;kalf; doesnt bounce back on rev but it make s ahigh pitch sound and doesnt go past k

Utah S2K

It sounds like for whatever reason you car is going into "safe mode". Most common cause is a cold motor. Most beleive "three bars" is good to go. Actually the V-Tec solenoid is oil pressure allowed, which occurs just above three bars of water temp. If the car is genuinely warmed up....You need to have the OBD-II codes pulled for evaluation. The ECU can recognize certain conditions and will prevent the car going into V-TEC (~6,400 RPM). While a CEL may not be illumintated a short term fault is probably being stored.

Utah