car-99 hatch
engine-01 itr
harness-99-00 si
ecu-99-00 si
CEL codes-1,2,3

from a cold start it takes a while to get the car started...it takes about 4 cranks to get it started...it idles really ruff then dies...crank it again idles ruff sometimes pops...hold it around 2k for bit car idles fine....sounds good threw the rpm range no back fire no hesitation....shut the car off...crank it again it starts with no problem.. idles fine sounds great...anybody know what this might be??

 

cold start valve right below the throttle body may need to be adjusted

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slambedcivic &raquo;</TD></TR><TR><TD CLASS="quote">cold start valve right below the throttle body may need to be adjusted</TD></TR></TABLE>
interesting. never knew there was such a thing? the winter is definately here and im sure cars are feeling it too.

 

i wasent aware there was such a valve...are they on all b series thottle bodys?? what is it screw??

 

i don't think obd2 cars have the fast idle thermo valve under the tb.... the fast idle is handled by the eiacv.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dantastic &raquo;</TD></TR><TR><TD CLASS="quote">i don't think obd2 cars have the fast idle thermo valve under the tb.... the fast idle is handled by the eiacv.</TD></TR></TABLE>

then i was wrong, i appologize.

altho im goin to check this on my 96 LS motor in the AM just to be sure

 

its controlled by the idle control valve. what does your motor idle at normally? Your map sensor will make your car run like ****. if its not hooked up or its not functioning properly your car will be in a semi limp mode. you need to get that code taken care of. the oxygen sensors being bad will just make the car run super rich. but the Pesky OBDII could throw ur car into limp mode for those as well. so that explains why your car barely idles and dies.

 

Will the map sensor make the car backfire or bog as well? I have suspicion that my map sensor is causing my bad cold-starts.

My car's been bogging and backfiring...

 

i just finshed the swap acouple of days ago....it idles around 900-1000....i did change the map....i took the one off my old motor to see if it would help...and it still starts like crap....i'm trying to go monday to get the cat and the rest of the exhaust hung right.....do u think it will be ok to drive like that???