ok... my english isn't good enough to explain what i'm experiencing with my ride...
anywayz, here goes nothing...
after i got a swap done in my car, it was running just fine 'til about a month ago...
it feels like it loses and gains HP back to normal everytime i start the car...
i mean, the power loss of the engine changes everyday and every ON/OFF of ignition...
eg.)first start, it runs and pulls good but at second start, it does'n run as good...(it changes everytime... )
but no codes or nothing... but one thing i found is that when my car's idling, it always idles at 900RPM... but when i rev to 1500RPM and let go of the gas peddle,
it all of a sudden drops to 700RPM and back to 900RPM... i tried adjusting idle w/ no luck... no matter which way i turn, it stays at 900RPM...
could this be the ignition problem?? bad connection somewhere under the hood??
vacuum leak?? this is making me nervous and mad!! so i'm here to beg u guys for help!! thanks for reading... be safe guys!!



[Modified by hoya_10fintec, 3:38 AM 8/2/2002]

 

ignition, vaccum, and fuel....


give each a once over, and do any scheduled maintanence that you may have overlooked.

 

vacuum leak.... how do i check for a vacuum leak?? ...and thanks...

 

any more possibilities? or anyone with similar problems?? thanks...

 

please!!!

 

i have the exact same set up as you do, except for the LSD and mines is a hatch...i get the same problem with the idling but the power seems to be the same eveytime i punch it... it could be the temperature of the motor at the time...i have a integ radiator and that mess is hella COOL after i punch it or when im sitting in traffic....maybe thats the problem... hope this helps....

 

hmm.... possible... thanks,man.. .i'll check into that...

 

did u have the ecu reset lately, dirty fuel lines..fuel pump..see what kinda shape ur plugs are in..hmmmmm? *anything else?* since it ran fine at one time something sounds like something needs replacing or maintenace...if all fails get a full diagnositic to find the problem..runs $80 at my neighborhood speedylube

 

i say fuel pressure reg.

 

thanks guys!! i guess i'll try everything that you guys told me... ma best bet...

 

when mine would bog it was due to a going back ignishion coil