Posted: Dec 19 2011 at 10:09am | IP Logged

i own a 2007 frontier nismo 4x4 auto 4.0 litre v6

occasionally after truck has sat say overnight and the temperature drops below maybe -25 degrees celcius

the truck will have a fast strong crank, but will not catch and fire up!  the other day i tried boosting it even though i am pretty sure my battery is ok!~  at first no luck with boost but then with a boost still hooked up i hoped into my truck and wiggled the gear shifter making sure that park switch was being met and i cycled my key off and on approx 2-4 times before going to start truck . it started right up for me let ir run for say 5 minutes then shut it off and tried to start it agian it started up fine after.   it did seem to rev a little bit higher then normal after i got it started the first time for what seemed like longer than usual. i am not 100% sure but i think my gas milage is a little bit worse than normal now too>

does thgis sound like a bad fuel pressure regulator??

i have already had the fuel pump replaced and i have a new ipdm e/r

someone plz help me!

Posted: Jan 03 2012 at 8:12am | IP Logged

false alarm   tried cycling key again didnt work

hooked up a boost.. fired rite up

man this sucks

had in in at dealership over the hoidays again cant recreat problem cant find anything wrong!

i think my ecm module is the culprit.

 when its really cold out its almost like it gets a slightly higher resistance   which needs an extra boost of voltage to work properly.   

nothing seems to be drawing my battery down after a long cold soak it cranks strong. just maybe not quite enough voltage to communicate properly with ecm???

help me someone please

07 frontier nismo 4x4 auto

Posted: Jan 03 2012 at 9:15am | IP Logged

..

When and if all else fails!

Back in the mid 1950's A friend had an Oldsmobile that had starting problems. In those days cars had 6 volt battery systems. The battery was replaced with an 8 volt battery and no other changes. This fixed the starting problem. All the lights burned brighter which means they will burn out sooner but it wasn't... in his case... a problem. Maby a 16 volt battery could be installed with an isolaton switch and only used when needed. Most electrical devices are designed to handle up to 50% more voltage than in normal use.

I'm not recomending this action... I'm just sayin'.... Good Luck.. Don S..

http://www.batterycentralmall.com/Batteries/TurboStart/Turbo Start_Racing.html