i changed my timing belt, head gasket, and waterpump on a 1995 d15b7 sohc non vtec. a cel code comes up 41. the car idles high and low inconsistently and it sounds like a misfire from the exhaust. the distributor is on and the firing order is correct. all the plugs are in the right place and the 02 sensor seems fine. when i did the timing for the timing belt tdc on the bottom block was right on the line but the head was off by a hair but either way i moved the cam gear it was still off. so im assumin the timing is fine. anyone have any ideas?

 

Air in cooling system possibly. Did you bleed it properly?

 

This^

Also check whether you accidentally broke the heater element power or ground wire for the O2 sensor.

 

you know both of you guys are right i appreciate the help. i did not bleed the coolant system and when i took the header off the 02 hit the ground pretty hard. so i will check those tomorrow. im gonna double check if i have any vaccumm leaks too.

 

up and down idle was fixed on account i forgot to tightin the top manifold bolts. fail.
still cel for 02 time to check the wires.