Circuit opening relay
08-09-04, 03:34 PM
#1
She's alive
Thread Starter
Join Date: Mar 2003
Location: Illinois
Posts: 191
Likes: 0
Received 0 Likes
on
0 Posts
Circuit opening relay
What all does the circuit opening relay control. If it is bad will the starter still crank. Im still getting no spark or injector pulse so i am going through all the relays. Any help would be great. thanks
08-09-04, 06:38 PM
#3
Lives on the Forum
That relay controls power to the fuel pump. It has 2 coils, one is energized with the key at start, the other is energized with the AFM door switch. Either coil energized will drop the contacts and send power to the pump...Has nothing to do with the starter, other than stated above...
If TPS is bad you'll throw a code, and run crappy, but does not "directly" control ignition & fuel delivery, but IS used in tandem with other sensors to accomplish this...
If TPS is bad you'll throw a code, and run crappy, but does not "directly" control ignition & fuel delivery, but IS used in tandem with other sensors to accomplish this...
08-09-04, 07:50 PM
#4
She's alive
Thread Starter
Join Date: Mar 2003
Location: Illinois
Posts: 191
Likes: 0
Received 0 Likes
on
0 Posts
after checking around on some stuff i think i may have found the problem. I decided to check the voltage going to the EGI main fuse. I get 12 volts on the side coming from the battery but on the side that connects to the 2 wires that go to the EGI system im showing around 5 and 6 volts. Thats with the fuse out. So i believe there is a wire crossed somewhere because that wire shouldnt show any voltage without the fuse being in to complete the circuit. RIGHT???
08-10-04, 12:11 PM
#5
HAILERS
Join Date: May 2001
Location: FORT WORTH, TEXAS,USA
Posts: 20,563
Likes: 0
Received 21 Likes
on
19 Posts
It could be just some back feeding.
Go to the ENGINE fuse in the car. Pull it out. Ohm it out. If bad ......replace it.
Engine fuse good? Egi EGI Injection fuse good?
Go to your LEAD coil assy. Pull apart the small, white, two wire plug. Turn the key to ON. Is there 12v at the black/yellow wire on that connector?????? If not, pull the Main Relay. Is there 12v on the Black/Green wire??? 12v on the White/Blue wire????? Yes or no.
Go to the ENGINE fuse in the car. Pull it out. Ohm it out. If bad ......replace it.
Engine fuse good? Egi EGI Injection fuse good?
Go to your LEAD coil assy. Pull apart the small, white, two wire plug. Turn the key to ON. Is there 12v at the black/yellow wire on that connector?????? If not, pull the Main Relay. Is there 12v on the Black/Green wire??? 12v on the White/Blue wire????? Yes or no.
08-14-04, 06:07 AM
#6
She's alive
Thread Starter
Join Date: Mar 2003
Location: Illinois
Posts: 191
Likes: 0
Received 0 Likes
on
0 Posts
yea i have already checked all that. I just have no idea of where to look anymore so im trying everything. Thanks for the suggestions and keep them comming. Also yes there is 12v to my main relay.
Thread
Thread Starter
Forum
Replies
Last Post
Jeff20B
1st Generation Specific (1979-1985)
73
09-16-18 07:16 PM
