Ok,I placed a paper clip on the Jumper,pulled out the timing gun,set it to 15 degrees and moved the dizzy til the pointer lines up TDC on Flywheel,turned off the car took the paper clip out. I turned the car back on,pointed the gun,and The TDC mark is not even aligned,its way off,but if i put the paper clip on Jumper again,the pointer lines up TDC...is something wrong???I been having all sorts of timing issue for 4 months now..

 

nothing is wrong, the clip tells the ecu not to adjust idle timing, you doing all of this when the car is hot im assuming.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mmuller &raquo;</TD></TR><TR><TD CLASS="quote">nothing is wrong, the clip tells the ecu not to adjust idle timing, you doing all of this when the car is hot im assuming. </TD></TR></TABLE>

Yea the car is warm,but my idle is high,about 13-1400rpms,i cant get it any lower,unless i put my finger inside the throttle body and block oneof the little holes.But my concern is,if I jump the connector,do the timing,remove the jumper from connector and restart the car,shouldnt the timing be where it was set at??I.E. 15 Degrees!!and not move from there?? Because everytime after the timing process,i go to recheck it without the jumper connected since im not adjusting timing anymore,and the dot on the flywheel is never there...

 

The ecu is adjusting the timing depending on rpm and vacuum.When you jump the service connector you disable that function so you can set the base timing.Sounds like you have a vacuum leak.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NJIN BUILDR &raquo;</TD></TR><TR><TD CLASS="quote">The ecu is adjusting the timing depending on rpm and vacuum.When you jump the service connector you disable that function so you can set the base timing.Sounds like you have a vacuum leak.</TD></TR></TABLE>

So even if i jump the connector n set the timing right,a vacuum leak could throw of the timing once i remove the jumper causing it not to be on time anymore??

 

idle needs to be stable, once rpms go up maps change a decent amount at a time

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mmuller &raquo;</TD></TR><TR><TD CLASS="quote">idle needs to be stable, once rpms go up maps change a decent amount at a time</TD></TR></TABLE>

Thanks, thats what I wanted to hear, I appreciate it.Cus I do everything on my car myself and never take it to a mechanic wich saves me tons of money and I learn things as well...And this is something new to me,so I just keep learning new things whenever I get motor problems and hopefully solve them......

On another note, my idle is constantly high even with the idle screw all the way in,im not running an IACV(i havent experienced no erratic idling nor driveability problems with it being removed except for a constant CEL code 14 lol)I may have vacuum leaks sumwhere,havent really gon thru it,but if i cover up one of the holes inside th TB in order to lower my idle while doing timing, would that work???

 

OK....lets start over.Set your timing with the service connector jumped.Rpm with the jumper in is not critical.Now remove the jumper,you are done with the timing.
Your idle speed is set in the ecu with the iacv.That screw is not intended to adjust your idle (well not completely).You probably also have a vacuum leak,probably were the iacv used to be.

 

yeah but if hes setting timing with rpms up, timing at idle will not be what u want, since timing will still increase with rpms regarding of the service connector being jumped or not.
fix your vac leak first.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mmuller &raquo;</TD></TR><TR><TD CLASS="quote">yeah but if hes setting timing with rpms up, timing at idle will not be what u want, since timing will still increase with rpms regarding of the service connector being jumped or not.
fix your vac leak first.</TD></TR></TABLE>

Thumbs Up...Thanks..