davin

hey everyone, i just bought a 92 civic EG so i would stop putting miles on my FD3S. well, for some reason i got no spark. i replaced the rotor, cap and a new dizzy from autozone. one day i went to crank it and it fired right up, the next day it didnt start, but cranked like it did last time. then got a replacement dizzy from autozone and it would crank but not fireup again!

i am getting fuel preasure, the wires are in the correct spot and my cams turn but there is no spark. the dizzy is keyed correctly to the cam and this is the second dizzy where there is not spark. i am an aircraft mechanic for the navy, i am getting a degree in aerospace engineering and i work on my RX7 constantly, but this one has got me stumped... any ideas :-/

davin

i also checked the battery and also jumped it just in case... no dice :-/

davin

i am also getting compression

Archidictus

Have you tried borrowing a friend's ECU to see if that's the problem?

davin

no, i will do that. the only things i am thinking is...

1: the main relay
2: the wiring harness (but would this cause a no spark?)
3: a bad ground somewhere
4: a bad ECU

davin

BTW, where is the ECU on a 1992? i remember on my 98 is was on the passanger kick panel, but i cannot find htis one for the life of me.

Archidictus

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by davin &raquo;</TD></TR><TR><TD CLASS="quote">BTW, where is the ECU on a 1992? i remember on my 98 is was on the passanger kick panel, but i cannot find htis one for the life of me.</TD></TR></TABLE>

Same place. Look harder

instrument

maybe you have no ecu........

omg

Quarter Performance

yea, look at your grounds. i had a bad ground connection and car wouldnt start either. had compression and cranked over just woouldnt fire, fixed loose ground started right up.

saikouEF8

my car did this when i had a bad ground.
i replaced the dizzy twice like you before i figured it out.
the bad ground was causing the fuel pump to cut out intermittently.

another possiblity....
if the main relay is bad on a Civic, you will lose power to the injectors and the fuel pump but you may not lose fuel pressure because the injectors can't open without power. did u check the main relay with a multimeter?

davin

so i just replaced the ECU just now and still the same thing.

how do i check the main relay with the multimeter?

davin

and all the grounds are good too :-/