91 CRX Si help!! engine messing up big time.. no one knows why :S
05-31-2005, 03:57 AM
#11
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Join Date: Feb 2004
Posts: 139
Re: 91 CRX Si help!! engine messing up big time.. no one knows why :S
i doubt the main relay is the culprit with the symptoms you mentioned.
the main relays do commonly go bad, but the symptoms are no start despite turning over when the car is hot.
the main relays do commonly go bad, but the symptoms are no start despite turning over when the car is hot.
05-31-2005, 07:48 AM
#12
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Join Date: May 2005
Posts: 49
Re: 91 CRX Si help!! engine messing up big time.. no one knows why :S
well it doesnt even start when its cold. me and all of my friends and just about anyone i know has no idea at all what it could be unless its the main relay going bad.. sometimes it starts.. but the tach bounces all over the place and it wont stay running very long.. ive put 2 other dizzys on it. including an obd1 with jumpers made for obd0... still wouldnt start.. it misfired and sputterted a little bit, and we checked the connections and they were all fine... i then put the stock tach back on it, tried to drive it to a mechanic down the road, and it died.. only thing i have left to do is replace the relay, and if that doesnt fix it. call a tow truck again and take it to someone who knows wtf it could be.. since the pgm-fi relay is making ALOT of noise when its not starting.. im thinking it could be that since it never made that much noise before.. hell, it never made any noise that i noticed.. also i dont think it even notices when the Trottle position sensor is disconnected.. seems to m like my car is just hella pissed off at me or something.. cuz ive been messin with it non stop for about a week an a half now and ive got nothing..
05-31-2005, 08:26 AM
#13
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Join Date: Feb 2003
Posts: 9,089
Re: 91 CRX Si help!! engine messing up big time.. no one knows why :S
my main relay is flaky. but when its a no start it doesnt click. A clicking main relay means a wiring problem somewhere. Check all your grounds (AS PER THE MANUAL) and check all wiring for any thing that looks odd.
05-31-2005, 01:40 PM
#15
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Join Date: May 2005
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Re: 91 CRX Si help!! engine messing up big time.. no one knows why :S
thanks, ill check that out today when i go mess with it some more. anyone else have any ideas of where to check that would be awsome. also i re routed my battery.. would the resistance from the longer cables do that? im considering moving my batter back under the hood but i dont have a small enough battery at the moment.. my origanal was toast so i got another for free and put it in the back of my car.. i had no problems with that until now.. i have 2 gauge cable for the battery relocation fyi, napa told me that it should work.. and its real battery cable not amp wire.. but ill check the grounds. thanks a lot. man i love this site, friend just told me about it and its really been helping me out.
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05-31-2005, 09:35 PM
#17
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Re: 91 CRX Si help!! engine messing up big time.. no one knows why :S
okay, so today i replaced the PGM-FI main relay.. didnt seem to do much other then it started and still ran like shat.. honda has no idea why its doing what its doing.. the check engine light came on and didnt throw any codes out though.. then it came on and just stayed on for like 5 minutes until i turned the car off. (the LED not the engine warning light on the dash) what grounds could make it do that? cause i havent found any with bad connections.. only thing honda could sugest is that the wiring harness itself shorted out somewhere.. but they cant explain why it only runs sometimes.. and then other times it dies.. i have no idea whats going on, ive checked just about everything i know how.. including a different ECU...
06-01-2005, 12:25 AM
#20
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Join Date: May 2005
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Re: 91 CRX Si help!! engine messing up big time.. no one knows why :S
ALRIGHT! AWSOME! it was a loose ground on by the thermostat.. i was looking in the front of my engine for some reason.. dont ask why.. i looked at the back of my old engine, and it clicked. there was a loose nut on there, so i checked on the new engine.. and blam, loose ground. tightend it up, and purrrrrrrr.... now there a slight sputter like maybe because i have the Si intake manifold with the HF injectors and throttle body? ill change those out tomarrow and it should make a difference.. i hope. anyways, thanks for all the help, esheshaly the guy who said it was the ground by the thermostat.
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