Left my neighborhood a couple weeks ago and i quite on me

replaced the dizzy thinkin that was it

found out it wasnt turnin

realized the cam had broke in half

replaced it and it still wasn't runnin right so i pulled the head and it had 2 bent valves

replaced um put it back together and it still wasn't runnin right so for ***** and giggles i pulled the exhaust manifold back off sure enough it ran like a charm

so iv bought a header to get rid of the clogged cat

put it on and now it wont start so im guessing i unhooked something or theres a code of some sort that needs to be cleared im not sure

 

Add required car information.

Test for spark and fuel.

https://honda-tech.com/honda-civic-d...lists-1901557/

 

My bad lol no its got spark fuel air compression and its in time i forget to state that in the thread this is y im so mystified

 

Prove it to us (spark, fuel, timing) rather than just stating conclusions that may be incorrect.

Codes?

 

MM&Y of car along with trim level and any mods?????

Ek is of no help. 94

 

97 sedan y7 lx 5speed only mods to motor are exhaust

 

Lol it has spark how do i know because ive seen spark its got fuel how do i know because ive smelt fuel how do i know its not out of time because both timing marks on the crank pulley and tbe cam gear line up where they are supposed to at top dead Center and its not 180 out either trust me not just jumping to conclusions because i slapped new parts on

And its not throwing codes because it hasnt ran for it to actually throw one

 

How did you check for spark? In all 4 cylinders? How did you determine quality of spark?

Does the fuel pump prime? Do the injectors spray fuel?

Post pics of the cam and crank at TDC1.

The engine doesn't need to run for the ECU to throw codes. Check for codes.

If you're unwilling to provide basic and verifiable no-start 101 diagnostic results, then this thread will be locked.

 

For what it's worth, I was mystified for over a month as to why my Civic wasn't starting. Confirmed spark on all 4 cylinders, confirmed injectors were spraying a nice plume of fuel (took the whole rail off and cranked the car), confirmed compression was good, confirmed timing was dead on, no CEL...turned out the spark plugs were fouled. Outside the car they had spark (orange spark, not great) but once installed the compression and/or massive amounts of fuel was enough to blow out the spark. Changed plugs and it ran like a champ. Got a different chipped ECU to put my chip in and that fixed the running rich condition that led to the plugs fouling.

Just goes to show you that sometimes even when everything SEEMS good, sometimes it's just not QUITE good enough to run the car. If your plugs are black, you may have too much fuel getting in, which also could have caused your catalytic convertor to melt.

 

I would check all of your grounds make sure you put them back where they belong.