Post by
95-J30tt »
https://forums.nicoclub.com/95-j30tt-u40286.html
Wed Nov 29, 2006 12:39 am
if you get it started and you find out the problem to be that you have flooded your pistons, dont drive the car, change the oil first, because if the pistons are flooded, then i'm sure that you got fuel mixed in with your engine oil (it is normal, and not unusual), that thins out the oil, and it would cause a major issue.... take out the dipstick, and check for fuel smell, if the smell is strong, then change your oil before proceeding further..... i can imagine that the car is not at a garage, so just unbolt the oil drain plug (14mm socket) and let the oil drain..... then tighten the bolt, then just fill the oil back up to level, no need for a filter change (temporarely, but change the oil again and filter when you get back home).....
i would really suspect your fuel injectors, take a multimeter with you and see (with the ignition off), does any of your injectors give out a reading? (it would read around 14 if it is on), if so then it is one of your injectors, that is known to happen a lot with the vg30de and tt engines.... just unplug the fuse (as DominickJ30 said) and let the car run (it will run for about 5 seconds before it dies), then plug the fuse back and start it.......
if that doesnt work, then try this, take a phillips screw driver with you, unscrew the one fuel hose (the one that is coming from your fuel filter, and make sure you put a rag under it as it will leak out fuel, about 100mL or so), that will depressurize the fuel system, now put your ignition to the on position, you should hear a sound from the fuel pump that would stop after about 2-3 seconds....... if that sound keeps going, then depressurize the fuel system angain, and start your engine right up (dont give the fuel pump time to flood your pistons)...... if this is the situation, then i suggest that you take it to a garage asap, it could be your fuel pump relay messing up
if that doesnt work, then try this, get a spark plug socket, and remove all spark plugs (well you dont have to remove them all, i know the two in the rear of the engine are really a pain to get to....), and wait for about 10 minutes, observe the spark plug holes, is there any noise or fresh fuel coming into any of them (if there is, then it is the injector that is feeding that cylinder that is preventing the engine from turning), in that case, remove that injector's connection plug and start the car then plug it back in (the engine would run rough untill you plug the injector connection back it)........
and finally, if all that fails, unplug the fuel pressure regulator's vacuum hose and wait a little, then plug it back in, if you can start the car afterwards, then it would be that one of your vacuum lines that is not tight or disconnected....
the above steps are not a perminant solution, and are only to diagnose the fuel system.......... this is just to get you home, after you get the car home, take it to a garage and get it checked, fuel problem is not fun, and could cause a fire or even worst...... in either case, once you get home, unplug the injectors and fuel pump fueses untill the car cools down, then plug them back in for further diagnoses.......
other issues that might cause the engine to not start
the intake hoses are not properly tightened, or MAF is not reading correctly
vacuum lines that could be out of place or not tight
i know this one might sound odd, but it could be that your fuel meter is not reading right..........
spark plugs are failing
i hope this helps, good luck, i've been in your shoes once before............