my engine stutters at 5k after vtec engagment?! it never happened before but this week its happening all the time, is it timing belt?! or spark plugs?! my engine is d15b vtec


Modified by zenon8890 at 7:25 AM 8/17/2007

 

Any CEL's?

 

no

 

How is your Cat Conv?

 

changed it like 3 months ago, its annoying when it stutters at 5 k, and my when i put my third gear the car like its dead, it used to be faster, maybe i'm running rich or lean, i guess the timing belt jumped a tooth

 

i forgot to mention that my car does backfire from time to time while i'm cruising slowly between shifts

 

bump

 

Make sure plugs are gapped properly and/ or check and see if VTEC solenoid valve is dirty or clogged. Make sure that spark plug wires are not arcing.