My car (CR-X si w/ SOHC ZC) is hesitating in the low rpm range (about 1500-2700). It's sputters and struggles to accelerate, then it's fine at around 3000. It doesn't do this all the time either. I just installed my DCS header, checked all the bolts and stuff, no leaks. Before putting on the header it hesitated occasionally, but now it's much more often. I was thinking of running some Sea Foam through the system and seeing if that helps. Anyone have any other ideas?

 

is it throwing any codes?kinda sounds like a o2 sensor to me...

 

I'll check for codes later. If it is the o2, how could I fix it?

 

Replace the O2 if that is the problem
Check spark plugs, spark plug wires
If there is oil on the plugs you may need new spark plug seals or even valve stem seals. Since you have a ZC it sat for a while and the seals tend to dry up. I need new valve stem seals on mine. Do you smell oil burning when you get on it? If your motor is good could just be the seals.

 

Replace your cap and rotor, thats the problem 50% of the time for hesitation. My car does the same thing, and I cleaned the coil contact spot and mine didnt hesitate as bad but I could tell the cap had seen beter days as well as the rotor. Autozone replacement parts suck.

 

my car ran fine without an o2, but could be dif for your car. i'd say the spark plug wires, i had that problem too

 

I'll hafta check all that stuff out. Thanks guys! Also, weirdest thing, today I drove it around running some errands and it didn't hesitate even once. It was raining today too

 

yeah definitly try replacing the spark plug wires. it hesitated like that in mine somtimes more than others. i was afraid i would need a new dist., but just tried new wires and ran like a charm

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by cool_as_crap &raquo;</TD></TR><TR><TD CLASS="quote">yeah definitly try replacing the spark plug wires. it hesitated like that in mine somtimes more than others. i was afraid i would need a new dist., but just tried new wires and ran like a charm </TD></TR></TABLE>

Cool I'll do that. I'm swapping on a Y8 head soon, maybe I'll hold out until then.