Rep Power: 0

ok the problem is this
when i star my car every day the needle of the tach its over the 1000 rpm line
but when i star to ride and stop on a stop light the revs comes down slowly up tp 500 revs!! then the car start to shake a little and then the revs needle goes up to 700-800 rpm.... and stay that way variable... i think was a hose of the cai that is ****ed up, but i change it and the problem still....
what could it be?

hope u can help me
thanks

note: im gonna post some pics later... and if i can... some videos

 
Rep Power: 812

The car always idles high when first started. Your main concern should be idle in neutral being around 700rpms. Yeah the rpms will drop lower when coming to a stop, but it should come back to resting speed. Sounds normal to me.

 
Rep Power: 0

well da problem is that when the revs goes down... the car starts to shake a little bit... and the lights come a little down... like when its gonna turn off..... so thats my interest to know whats happening....
i have custom cai, and headers.... if that helps whit something

 
Rep Power: 812

There is a sticky in this forum on how to raise idle rpm. May want to try and raise it a little. First I would try and reset the ecu. Warm the car, disconnect battery, plug back in, start car, let idle for 10 mins without using any accessories or pressing gas. Turn car off. The idle should now be set.

 
Rep Power: 0

yeap.... i just have see that.... gonna make that 2morrow and let u know thanks

 
Rep Power: 304

hmmmm...well when u start ur car in the morning, engine is still cold...so rpm at 1200 is normal.

after the engine is warmed up, rpm goes downt o 700-800.

when cruise in neutral, rpm goes down to 1200 then it goes then 700-800.

that stuff i said above is normal.

what does ur car do different from above?

 
Rep Power: 0

My car does that too. Its just normal.