I was driving the car and then hit a speed bump maybe around 20mph and my car just died.

The engine is a fresh rebuild and everything was running great
The weird thing is that the cars headlights will turn on and light for the key right above the ignition is on.

Nothing else turns on. Not even on accessory (I had to put my top up manually and couldn't even put my windows up and it started raining).

I tried jump starting the car because I thought the battery might have miraculously lost all of its charge. No such luck. Tried jumping it and no accesories or turnover.

Only thing I can think of is that the ground from the battery to the frame fell off when I hit the bump ... any other ideas to check ?

 

also where is the ground located at on the frame typically for the battery ?

 

I'm in the same damn boat with my 86!
except the only way I've gotten mine to start up is by spraying ingnition fuel down the butterfly valve. It starts up to 3000 rpms then dies....... keeping my foot on the gas will not help either.
I check all Vac hoses, AFM, new sprark plugs, checked fuel pressure. installed and new fuel pump (the old one wasn't working very well)

someone please provide some tips!

 

thats not the same problem. my problem is i am not getting any power to anything, any of my accessories or the ignition (I cant even put my windows up). please post in a nother thread for seperate problems



UPDATE 1: Checked the grounds and they seem to be just fine?I don't konw where else to go with it now. Give me s ome insight guys

 

Have you tried push starting it.

 

Hey bro heres a link on all ground wires. http://www.aaroncake.net/rx-7/grounding.htm I hope it helps

 

hey I read that and traced the grounds .. they all look fine and are still "alive".
im going nuts here !!!

 

what the hell is going on?
the other day i took my car out and was driving fine and then i parked it...went to start it an hour later and ....nothing.......noticed an oil leak coming form the oil pan...fixed that and the plugs were flooded, changed them....still won't start it's getting spark and the FP is working not sure.

all these FC's going down whats up?

 

this might sound stupid but check the connection to the battery (make shure everything is still securly connected and the connection is there). Also try jump starting it.

 

hey already tried jumping it ... and i did check the connection about thirty times .. each time secretly hoping the car would turn over sigh

i really dont know wtf is going on .. i can usually think out a problem through logic but this has me baffeled.

lights are able to go on .. but nothing else or the engine GRRRRRR

 

My car did this a couple days ago Turned out the positive terminal on the battery had some corrosion and wasn't making a good connection. Cleaned off the terminal and it started right up.

 

this is mounted next to the leading coil on the body..right where your break booster is..make sure its bolted down..check make sure its not rusted and if not replace and i think it should do it..good luck

 

When I bought my first RX7 it just died on the way home. I mean completly dead nothing. I messed with the negative battery connection and everything came back on.

I would recommend replacing the + & - battery cables. Should be cheap to fix . Your cable could look fine on the outside but somewhere along the way there could be a missed connection. Also make sure your post's are clean.

 

I had the exact same thing happen to me after I had swapped engines. It turned out to be the ground wire that comes off of the main fuse block. Somehow we had missed reconnecting it. I could still turn on the headlights, but no accessories or starting. I hate to say it, but get out a voltmeter and start checking as many grounds as you can. Also, check your fuses.

 

was your battery straped down when you hit the speed bump? sounds like you blew a fuse when you hit that speed bump, battery went up and hit bottom of hood and shorted it out, poping a fuse.. take a look at all the fused under the hood. than start on the inerior fuses...

 

mort ... that would explain a lot ill start looking at the fuses today.

how the hell do you pull the main fuse to check it ? .. i tried pulling it and it just doesnt want tobudge

 

It has a nut you have to unscrew.

 

Yeah you probably arked to the hood with the battery. Check relays and fuses for sure.

 

Ummmm, this might sound stupid bro, but did you check your fuses?

EDIT: ok, you will....The main fuse has 2 10mm nuts on each side.....or is it 1 on one side and 2 on the other? Anyhow, grab a ratchet.

 

just pulled the main 80 fuse out .. that was easy lol .. its 1 and 2 nuts on each side.

anyway how to i know if its blown or not without a test light ?

 

fixed

 

Great news. So it was the main?

 

Nope .. I did make a write up for it though
https://www.rx7club.com/2nd-generation-specific-1986-1992-17/write-up-car-wont-start-but-still-have-power-lights-669828/