[mhernandez0950]

I just swapped out a 1.6 to a 1.5 in my Honda civic. I am not getting any codes or any engine light on. The car seems to be running okay and idling good. But when I am driving and switching gears mainly in second gear the car starts hesitating like if I switched in to a higher gear but once it starts going then it s fine. I get the same problem sometimes in first gear on take off and through the rest of the gears if I put the throttle to far down it’ll start having that hesitation. But really noticeable going into second gear it seems like if I run the rpms to about 4-5000 before switching to second then it won't do it but anything under 3500prms then it starts hesitating until the rpms get back up then it goes back to normal. I thought that the clutch may be needs adjusting, but I don’t know why its doing this. Other then that the car is running great. Any help would be great. Thanks

[civicracing369]

You should check your timing if your timing is too much in advance your car will fire to urly and cause a lack of power same principale for a retarded timing your timing.
The timing for a d15b8 is 16 degres in advance and b7 12 degres or the other way around.
Check that out should be a good bet.