My 93 civic can not start. I checked to see if theres spark and fuel. Yes it has both. I tried jumping the ECU and i got the code 6,10,20. I thought maybe the ECU may have problems. So i tried to reset it by unplugging the battery. And hooking the battery back up. Still no start. I tried to jump the ECU again and this time around the CEL is solid and doesnt flash at all. Not main relay for sure because I have 5 spare ones and i tried it and still no start. The Fuel Pump primes whenever i turn the key to on.

I check to make sure the ECU is getting enough ground because I had an ECU ground problem before. And the mechanic told me that the ECU was having bad grounds. I can think of 3 places where the ECU uses as ground. The main one is on top of the T Stat, second one is where the chassis is hook up to the tranny, last is where ground is on top of the power steering pump. I even went and clean the ground to get a better contact. But still no start. So is it true that if there is no problem detected by the ECU the CEL would stay solid when i jump it?

So what do you think the problem maybe. I even changed the dizzy and injectors with a good one and still no start. Maybe the spark plug wires?

 

what is a "no start" , does it crank ? does it sound normal when it cranks ? when did the problem start and how

 

did you check all the timing, dose it have compression
what were you doing before this happened I.E. engine swap, head gasket

 

well before my car was blowing out white smoke. my car sounded like a subaru with a nice deep tone to it after starting up but it goes away after that. I know my car would usually stutter and acceleration wasnt as good. The car started to have problems starting and i felt that it got worst overtime. It felt as if the water was getting into the cylinders. I wasnt sure what the problem was, so very often my car would overheat, and i would have to refill my radiator coolant level like every other day.

The problem started to get worst overtime, the car would have a really tough time starting and not to long after i realize that theres white smog coming from the exhaust. The problem persisted for about a week then i pour in BAR fix a headgasket liquid in the radiator and realize the white smoke went away. Everything seems to be back to normal and after driving it for a while the car just didnt want to start no more.

But it does crank

 

check compression? check the plugs?

 

pull a plug an crank your car......if water shoots out.....well u kno the rest...

 

could it be that the cylinders is flooded with water?

 

hmmmmm.........i wonder if what i posted had to do with what your talking about.....