RB20 wont start, HELP!

Post by **dizzywithsunstroke** » Mon Jun 29, 2009 5:00 pm

first off, i have a 95 240sx with an rb20 in it. i had some serious overheating problems with it. i narrowed it do to a blown HG. i just got the motor all back together after putting a cometic MLS HG on it. i also replaced the water pump, timing belt, idler, tensioner and spring. i went to crank it up and it started after about 10 secs of cranking. it idled like dog**** for about 10 seconds and them shut off. when i cranked it after that it wouldn't start. it sounds like it really wants to, but it doesn't. i double and triple checked my timing, so i know its not that. fuel pressure is normal and injectors are clicking when i turn to CAS. i tested for spark and all is good there. MAF is brand new and worked fine before the motor pull. what else could it be that i might be overlooking? any help would be really appreciated.

Post by **dizzywithsunstroke** » Tue Jun 30, 2009 3:33 am

anyone?

Post by **Carl H** » Tue Jun 30, 2009 4:06 am

wet plugs?

Post by **dizzywithsunstroke** » Tue Jun 30, 2009 6:39 am

i just bought some new plugs this morning, so when i get off work im gunna put them in and try again. i'll keep everyone posted. but if anyone can think of anything else, please let me know.

Post by **dizzywithsunstroke** » Tue Jun 30, 2009 12:50 pm

also, im not throwing any codes.

Post by **dizzywithsunstroke** » Tue Jun 30, 2009 2:30 pm

so far i have pretty much been talking to myself but i am really hoping the rb gods will hear me soon. i just put everything back together with the new plugs and it started but once again ran like ****, i mean it sounds absolutely horrible. so i shut it off and checked my codes again. now its throwing a 21 code. internet says its ignition signal circuit. alright rb gods, GO!

Post by **Carl H** » Tue Jun 30, 2009 3:11 pm

check ignitor connections again...make sure its well grounded.

Post by **dizzywithsunstroke** » Tue Jun 30, 2009 3:51 pm

checked. connections good, grounds same as i always had them hooked up.

Post by **dizzywithsunstroke** » Tue Jun 30, 2009 10:32 pm

is there any possible way to have the marks on the crank gear and cam gears perfectly lined up and still be off on timing?
Modified by dizzywithsunstroke at 3:14 AM 7/1/2009

Post by **240sxbobbis** » Tue Jul 07, 2009 8:35 pm

check your cas ifthe half moon is broken , apparently upoin removal or replacement it could've snapped , fine pick everything piece by piece and see its the least i can say ....

Post by **yotik** » Wed Jul 08, 2009 4:32 am

mine ran like booboo til i fixed the vac leak. shielded the maf and secured ALL vacuum leaks now im idling and building boost fine. thanks Nico

RB20 wont start, HELP!

RB20 wont start, HELP!

Re: RB20 wont start, HELP! (dizzywithsunstroke)

Re: (Carl H)

Re: (dizzywithsunstroke)

Re: (dizzywithsunstroke)

Re: (Carl H)

Re: (dizzywithsunstroke)

Re: (240sxbobbis)

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