88 NA won’t shut off with ignition switch
Need some help. I’ve got an 88 GTU NA, fresh rebuild, haven’t driven it yet, but while getting things put together, a new problem from two days ago. The car will not shut off with the ignition switch. I’ve pulled all the fuses on the interior block looking for back feed, no dice. Pulled the BTN fuse in the engine compartment, no affect. The alternator only has a single wire in, so I couldn’t of revered wires. This wasn’t happening over the last few weeks of running it.
The car will stop if I pull the EGI Comp and or the EGI Inj fuses....logical, kill fuel and kill computer. I’m learning toward the main fuse, but it seems to be stuck, it will not pull out, unless there is specific technique. I don’t want to break it. I guess it could be a bad ignition switch too. when I turn the key off, other electrical things turn off I.e. radio, heater blower. I’m at a loss, this project has kicked my butt...long story, but eventually I’d like to be able to drive the car occasionally. also, yesterday my rpm gauge randomly quit working...haven’t had any issues until after I pulled the EGI fuses. any help is appreciated, thanks in advance Steve |
main relay sticking?
|
My first guess would be the ignition switch is at fault. Does it power on and power down the car without the engine running?
|
Originally Posted by mazdaverx713b
(Post 12472079)
My first guess would be the ignition switch is at fault. Does it power on and power down the car without the engine running?
|
Originally Posted by Steven.Hesterman
(Post 12471789)
I’m learning toward the main fuse, but it seems to be stuck, it will not pull out, unless there is specific technique.
|
I have about the same problem. the car start great while cold. then when i want to shut it of everything stop exept injection and ignition. I mean you can hear there is still injection and ignition by the engine still running but the fuel pump is off resulting in a flooded car for the next start.
|
Either the switch has a stuck position or the main relay does.
|
where is located the main relay? and do you need to take the steeringwheel of in order to take the switch cover off ?
btw car is a 87 s4 N/A |
Originally Posted by ozoone le deuxieme
(Post 12473302)
where is located the main relay? and do you need to take the steeringwheel of in order to take the switch cover off ?
btw car is a 87 s4 N/A Can get to ignition harness just by looking under the dash. https://cimg5.ibsrv.net/gimg/www.rx7...123f39b300.jpg |
so i checked for the relay but there is nothing next to the coils. the only thing is a connector and the headlight.
as for the switch i dont have the 4pins connector and when the key is on start i have continuity bitween ST and B and IG1 exept for that every other position is fine on the switch |
Originally Posted by ozoone le deuxieme
(Post 12473349)
so i checked for the relay but there is nothing next to the coils. the only thing is a connector and the headlight.
as for the switch i dont have the 4pins connector and when the key is on start i have continuity bitween ST and B and IG1 exept for that every other position is fine on the switch Continuity between B and ST would be turning the starter over. |
so continuity between ST and B is fine ? that mean my switch is good.
I only have 2 coils and they are just behind to the headlight. |
Originally Posted by ozoone le deuxieme
(Post 12473353)
so continuity between ST and B is fine ? that mean my switch is good.
I only have 2 coils and they are just behind to the headlight. there should be 4... |
thats not mine but mine look like that. there is only 2 coils behind the headlight where the blue wires are on the right
https://cimg8.ibsrv.net/gimg/www.rx7...a7c7608eab.jpg |
Originally Posted by ozoone le deuxieme
(Post 12473399)
thats not mine but mine look like that. there is only 2 coils behind the headlight where the blue wires are on the right
https://cimg8.ibsrv.net/gimg/www.rx7...a7c7608eab.jpg That gold box, top right corner by the clutch master is the main relay. |
Originally Posted by Spider2k
(Post 12473402)
Well alright then. 2 coils and a dizzy. So many variations...
That gold box, top right corner by the clutch master is the main relay. Is there many variation for the same year ? |
Originally Posted by ozoone le deuxieme
(Post 12473408)
Thank you i ll check it later today.
Is there many variation for the same year ? |
thank you for the help. ill let you know what i found
|
ok here i am with my ignition switch good and my main relay good.
I dont know what to do and i still have injection and ignition after taking the key out of the switch. Injectors are good i got them checked and cleanned 2 time. Any lead anyone ? |
It sounds like you have a backfeed in the that circuit. Its time to get out the wiring diagram and inspect the wiring and grounds for that circuit. Very likely a faulty ground causing the backfed voltage.
|
All times are GMT -5. The time now is 09:07 AM. |
© 2024 MH Sub I, LLC dba Internet Brands