when i tap the accelerator my rmps 1st go down to about 500 and then they rise up. My idle is at about 1000

what can it be? (any help) Is it normal?

 

ARe u talking at idle it does this or when ur driving? Also, is ur car an automatic or manual?

 

my tegg used to idle at bout 1000. It should be idleing at botu 500-800 warm. COuld be a very small vacume leak or the iacv could be dirty could also be bad tps. YOur throttle cable could be too thight also. Could be a few things but ther are some ideas to start with.

 

yes it does it while idle. gsr. manual. boosted

 

theres your problem your boosted your nvr going to get your motor to run, idle like stock id say that 1000rpm is good and id deal with it youll be fine unless you want to spend hour tuning adn messing with "stuff"

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by j_bizach &raquo;</TD></TR><TR><TD CLASS="quote">my tegg used to idle at bout 1000. It should be idleing at botu 500-800 warm. ...</TD></TR></TABLE>

Stock idle on a manual tranny, A/C turned off, is supposed to be 750 +- 50 rpms. That means it is supposed to be between 700 and 800 rpms for a stock engine. Mine has 303K miles and is still rock solid 750rpms. Now, built motors and turbo apps might need to vary from the stock setting to acheive a steady idle.