New to Forum, electrical question

Hello, my dad recently gave me his 1995 4runner withe the 3.0 engine 4wd. It has been sitting for about six years. Before that, he accidentally reversed the polarity while jumping it. At the time, he replaced some blown fuses including the main fuse, and it would crank but not start. I have gone through and replaced all the blown fuses I have found. I have also replaced the EFI relay and the circuit opening relay. It currently cranks but does not start over. Any advice or insight is very welcome. I'm very excited to be driving this old rig around. Not sure what I will do with it in the future, but it's a great old rig.

Thanks

 

Air, fuel, spark check um all.

 

Hopefully the ECU didn’t get fried.

Does any of the other electrical systems work? (I.e., radio, dash, headlights lo/hi beam relay, etc)

Check for spark?

 

A friend reversed the polarity on my old 2003 sport. Needed a new fuel pump and a few fuses. Can't hurt to check.

 

Welcome

 

Yes, radio, headlights, gauges, gauge lights, and those things do work.

 

So you're saying you get spark? Next step would be to plug in an OBDII scanner and see if you get any codes.

 

welcome

 

Welcome

 

Welcome from Wisconsin!

 

Thanks everyone for the warm welcome .

So I re read the comment and I realized I hadn't tested for spark yet. I used a spark tester and saw I wasn't getting any. Thanks for the tip! I appreciate people taking time to help me out! I love this 4runner, very nostalgic for me so I can't wait to get it running again.

 

I tested for spark, no spark. It looks to have an OBDI port on it, and I don't know if my scanner will read it even with an adapter. I'm trying to go down the no spark diagnostic route. Any tips would be really appreciated.

 

Welcome.

 

So I learned how to jump the terminals on the obd port and read the check engine light blinking. It pulled a Code 14, which maybe points to a bad igniter? I'm going to get and and swap it out and see.

 

Welcome! Hope you get it running soon. Got pics?

 

When I get it cleaned up. My dad had it for 20 years smoking cigars and fishing. Does a number on it

 

It's OBD1. OBD1 scanner = paperclip.

 

praise youtube university.

 

Ok, new igniter in. It starts up, then dies immediately. I suspect that since it sat for six years after my dad jumped it backwards, the gas is probably old. Gonna drain it and put some new gas in and see how it goes!

 

Sounds like you're making progress. Great project! Welcome to the forum

 

2nd gens don't have OBDII, they have OBDI which on 2nd gens is a jumper junction box where you use a wire to connect terminals and count flashes of the engine light.

 

Verify this, you can also test and run the fuel pump manually by jumping terminals FP to B+ on the same block (if my memory serves me correctly).

 

My bad, thx for the info!

 

https://www.yotatech.com/forums/f116/my-truck-runs-few-seconds-then-quits-312747/

 

Well, took a little to update, but the coil was bad. It runs great now. Been using it around town and everything. Feel a little silly throwing the other parts at it. There was a crack in the coil and its guts leaked out a little. Here is a bad picture of my dad's old fishing rig.

 

Glad you got it running & thanks for the pic