I have a b16b in a 2000 civic. My car suddenly won't turn on. I was driving put the car to sleep for the night wake up the next day try to turn it on hut won't it cranks/ turnover just won't turn on. I am getting spark my fuel pump is priming. The car does turn on when it is push started and will turn off and back on once it be on for a bit. Wondering what's going on why won't it start with key????? any help please

 

Any CEL codes? If you have an FITV, try cleaning and adjusting it.

 

no cell

 

Does the CEL work? Do you have an FITV attached to the bottom of the throttle body?

 

yes the CEL works and ive actually by pass the FITV, which has no affect the car until now if it is the problem this just has been pretty much an overnight thing

 

The function of the FITV is to increase the idle speed when the engine is cold. Without an FITV, the engine may be difficult to start when cold.

 

it turned on perfectly fine before i had it bypass over a year ago and now is when its acting up?

 

Had that problem before .... never figure it out .. i kept thinkin my oil was sludge up and not moving ...

 

i just changed the oil about 200 miles ago and i always change it every 3000 miles

 

check your grounds..

 

still stumped

 

Did you check/clean the FITV? You didn't say if you did or not. Maybe take the bypass OFF.

 

will try that today... but i dont see how from one day to the next it wont let it start when the 3 years before never had a problem..... i do have a clifford g5 and its not arming or anything as if it dead same time that my whole problem has started.... my grounds are good change spark plugs and wires everything seems right on the alarm wiring then again i didnt install it but once again this was an over night problem..... it did turn on with key one time just fooling around but again i let the car sit over night and next day all over again. cranks but wont turn on, battery good, fuel primes, spark is good im just completely stumped

ps my TB is that from a b16a2 which the FITV is part of the TB not like its another peice bolt on like some other TB's

 

You didn't mention anything about an alarm acting up prior to this. I doubt that this is coincidence and probably why you are "stumped".

 

i called the store that put the alarm and they said if my horn still works with the key turned to battery which it does then its not my alarm thats not letting it turn on... if my immobilizer was the reason it wouldnt turn on then how could i could push start it

 

I didn't say anything about an immobilzer did I? I said I don't think it's coincidence that your alarm decided to bite the dust at the same time you started having issues.