Rep Power: 0

I have a 2002 Honda Civic EX. The car cranks but will not start. I have changed the purge valve, vent valve, cam sensor, crank sensor, spark plugs, the relay going to the injectors, and changed the fuel pump. The only time the green key on the dash blinks is when I turn the car off, which makes me think the immobilizer is working correctly. I am not getting a code on the computer. I do not know what to check now. I have even tried spraying around the vacuum lines with starter fluid to see if I can hear a difference in how it runs. The car will start after several attempts. Sometimes I can go start the car on the first try. I am trying not to take the car to the dealer. Can anyone suggest what I could check now?

 
Rep Power: 211

wow you are all over the place with this post,

first the car would not start, then you say it will start and run,

more info is needed

 
Rep Power: 0

I can try starting the car and sometimes it will start fine and sometimes it will just crank and not start.

 
Rep Power: 211

a swing and a miss, you struck out

there must be other variables here, is the engine warm, hot, or completely cold while these things are happening?

 
Rep Power: 0

One of the problem is that the car not starting can happen anytime. I have had it happen early in the morning, after driving to town. The problem would be a lot easier to fix if it happened all the time. For example, I got in the car this morning and it started and ran good. I went to get gas and the car started good. Stropped at a store, and the car cranked and cranked. I waited a couple of minutes and tried again and the car started. The only pattern I see is when I got gas the problem started again.

 
Rep Power: 211

okay that sounds like an electrical problem to me,

clean and/or replace all main battery connections/grounds/terminals,

battery terminals, ground to frame, ground from engine to frame etc etc

 
Rep Power: 135

You need to check for fuel, compression, air and spark.


Checked your air filter lately?


Timing belt service performed lately?


Does the green immobilizer flash like crazy when cranking? Try the spare key to see if makes a difference.


Search on "7th gen civic cranks no start" here on this site for all kinds of info to troubleshoot.

 
Rep Power: 0

I will try that but, when the car cranks, it is very strong like the battery is fully charged. The engine is not dragging like a weak battery.

 
Rep Power: 0

The air filter is new. I have not checked compression. I guessed the compression would be ok, since when the car starts it runs fine. I also noticed the green light for the immobilizer, like I explained in the posting text. The timing belt is 3 years old and looked good when I changed the cam sensor.

 
Rep Power: 0

Does anyone have any suggestions. I checked my battery and connections and they are all good.

 
Rep Power: 223

so it starts fine when the engine is cold but it has issues once its warmed up?

 
Rep Power: 211

how exactly did you check them?

open the hood and look?

 
Rep Power: 0

I took the battery to autozone and had it tested. I cleaned the terminals on the battery and secured the connection. I do not think my problem is the battery. If it was the battery, the car would not try to turn over. The motor cranks fine, it just will not start.

 
Rep Power: 0

The temp of the engine seems to not matter if the car will start. I have had the car start cold and not start cold. Start warm and not start warm. I am going to change the main relay tonight to see if that helps. I am out of ideas.

 
Rep Power: 211

i never said your problem was the battery,

did you check and clean any of the other connections like i suggested?



you come here asking for advice, but you dont want to try or take the advice that is given,

and now all of a sudden YOU seem to be the expert.....



i give up

 
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Mikey1, you have not had anything to offer that was helpful to me. You suggested checking the battery and I did as you suggested. I check the terminals as you suggested and now you are trying to tell me that I am not doing what you suggested. I am surprised you have been on this forum as along as you have and had nothing to contribute. I never said I was trying to be an expert. I was only stating that I do not understand why it could be the batter or connections, Like you suggest if the motor is cranking strong.

 
Rep Power: 211

how do you know? you didnt even try or take my full advice

where did i suggest checking the "battery"....please point that out

that is only HALF of what i suggested, did you do the other things i suggested?....i already know the answer is no,


well i DO understand why, but you dont seem to want to listen

and this is coming from somebody who joined a few days ago



.

 
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mikie1, my bad, I should have typed battery connections. I went ahead and had the battery tested just be be sure it was ok. Yes, I did check all the connections you suggested. Any ground I could find seemed to be tight and not rusted. You are correct, I am new to this site. I came here looking for help with this car issue. I know it is hard to troubleshoot a problem from the other end of the computer. I tried to be as descriptive as possible. I am not trying to be an expert, I am humble enough to come to this site and ask for help. I have a question for you, If the car cranks strong and the battery shows no signs of being weak, how can this cause the motor not to start?

 
Rep Power: 223

Did you ever check if you were getting fuel and spark? You said the air filter is new, did you ever check to make sure the intake isn't clogged?

I've seen a few cars that seem like they're cranking fine but won't start. Throw a booster pack or jumper cables on them and then they start right up.

 
Rep Power: 0

Thank you for your reply, I am getting fuel, I removed the line from the fuel rail and cycled the fuel pump several times and I have fuel going to the rail. I will check the intake to make sure it is not clogged. I just installed the main relay and still have the same issue. Thanks for your suggestions, I will let you know how it goes.

 
Rep Power: 223

Try cranking it and then pulling the spark plugs to see if the fuel is getting to the cylinders

 
Rep Power: 0

I tried that and the plugs looks like they were dry. I thought it might be the main relay that powers the injectors but I had already replaced it. Is there a way to see if the injectors are getting told to fire? Thanks

 
Rep Power: 223

Back probe a connector and see if the voltage readings change?