nitromethane
New Member
- Joined
- May 6, 2011
- Messages
- 5
i have a 98 ek9 with the strangest problem at idle & no power through out the rpms.
possible two separate problems or they're are linked somehow.
when the engine is started cold it idles fine for a couple minutes even with the ac on. after the couple mins 3-4 mins if you turn on the ac the idle drops really low, when you turn it off the idle raises up then settles back normally. if i take the car for a spin and run it hard, @ idle the engine fluctuates anywhere between 800 to 2000rpm, sometimes it holds @ 2000 rpms for a while then returns to normal. i have swapped every sensor on the engine, iacv,etc. valve clearances checked over. engine timing checked over. vacum is good, no leaks. we have swapped ecu's with 1 other known owrking b18c, the b16b ecu worked fine on the b18c but the b18c ecu didnt work very well on the b16b even though it did make the idle with the ac normal.
also the engine has absolutely no power and is burning very lean as if the plugs are still brand new in color.
voltage 13.8 is good at idle and while running.
also, little things like: playing with the throttle (off throttle 1-5%) i can make the problem show itself.
what are y'all thoughts?
possible two separate problems or they're are linked somehow.
when the engine is started cold it idles fine for a couple minutes even with the ac on. after the couple mins 3-4 mins if you turn on the ac the idle drops really low, when you turn it off the idle raises up then settles back normally. if i take the car for a spin and run it hard, @ idle the engine fluctuates anywhere between 800 to 2000rpm, sometimes it holds @ 2000 rpms for a while then returns to normal. i have swapped every sensor on the engine, iacv,etc. valve clearances checked over. engine timing checked over. vacum is good, no leaks. we have swapped ecu's with 1 other known owrking b18c, the b16b ecu worked fine on the b18c but the b18c ecu didnt work very well on the b16b even though it did make the idle with the ac normal.
also the engine has absolutely no power and is burning very lean as if the plugs are still brand new in color.
voltage 13.8 is good at idle and while running.
also, little things like: playing with the throttle (off throttle 1-5%) i can make the problem show itself.
what are y'all thoughts?