I've got a 92 tercel that will turn over but no fire (spark). Relays are not clikin on when keys is turned to on postion and will not crank, could it be switch? or ecu? Replaced all of the relays but the E.F.I. realy have to wait til next week for this. Fuel pump working, tested manualy, and smell fumes after turning over a few times so fuel not the problem (unless its also not gettin power from the relay/switch problem and just pullin fumes off a vac.) so figured id find a good forum and a few of the guys at my usual forum hybridz.org suggested you guys. so here i am!
Any help appreciated an dif you guys have any question on datsuns feel free to hit me up.
5 speed, it will turn over, could it still b the depression sensor(not sure of the tech. name little tired)? Waiting paitiently for your reply good sir.
Ron
Ok will check, if its bad/going bad will the motor still turn over?
and not to sound like a complete idiot, but im use to working on 70-78 z's no offense meant to anyone, where or which relay controls this safety switch?
new coil, rotor button, plugs wires, cap, igniter, main relay.
will give visual check ASAP. Does it adjust like a kickdown switch?
ron
the clutch safety switch. check it. also check the relay (iirc) behind the radio.
well isnt the clutch safety switch only so the car can turn over? while the car is running the button isnt depressed only when the clutch is being held down
alright, no dont think the dizzy has been disconnected just the cap and rotor, but to be honest what is a molex? new term for me. Havnt got to check the switch yet, or the relay for it. oh yeah one more question, on all the schematics I've looked at there is a 7.5fuse for the ignition. But i can not find it for the life of me, I've got the extra fuse from the lid of the fuse box but dont know where to look to check it. Could it be the ecu? now ill shut up and listen.
ron
after more research here is another possibilty what about the Pick-up coil?
And something that I really dont know anything about, The anti-theft system?
what happens when it is triggered, and how is it fixed? just more possbilities.
thanks!
yes. i'm also thinking about the dpst relay that works with that switch.
Well then it would be the relay and not the switch, because if the engine turns over the switch is fine. if it is the pickup coil youre lookin at changing the whole distributor because it has an integrated coil. i doubt your tercel has anti teft system.
ok, no anti theft-(turns out in my groggy state of mind I misread my manual) well just a thought. Let me see, which/where relay works with the clutch safety switch? aad as far as the timing belt goes i have not checked it, would that cause no spark what soever? Engine rebuilt less than 10k ago, by reputable speed shop, I'll see if i can get the cover pulled and checked this weekend. By the way-> Thanks for all your help so far guys.
Ron
alrighty got the new efi relay in today, no luck still jsut turning over.
I'll try the relay for the clutch safety switch next, btw what should I ask for when purchasing this relay?
If the t-belt snapped you would have no spark. If it jumped you would. just because a local speed shop rebuilt it 10k ago is meaningless. The 7.5 ign is in the inside box near the left kick panel. What are your readings on ne and g at the pickup coil? Do you have battery voltage at the + terminal of the coil? there is a possibility of the ecm being bad as well but unlikely unless car was jumped backward. Check ALL the fuses and fuse links. Do you have a manual? If not go to www.techinfo.toyota.com and pay $10.00 per day for the info you will need. My subscription is not current so I cannot access it for you.
WTF is a molex or dizzy? Do you mean a distributor? A connector? Speak english man!
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Ex Toyota MDT 28 years of experience. I still fix them daily by appt only. Written warranty-great prices. References available.
Thank you very much for the detailed answer. Pretty sure the Tbelt still in one piece, the distributor( lol yes the dizzy) is rotating, still no spark. Todays the first day off in nearly 2 weeks so I can get out there and inspect all of the fuses closely. As far as the 7.5 goes, in the fuse panel under the dash near the Driver side kick panel, I do not recall seeing anything in there about ign. hmmmmmmm. Well in any event Thanks for all the help. will report back.
Ron
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