Crank, No Start - Toyota Nation Forum : Toyota Car and Truck Forums

ToyPick · 05-10-2011, 10:50 PM

Alright so, 1991 2WD Toy Pickup... 250 000 km 22RE

Been through 2 winters with it had a few milestones but were quickly solved usually thanks to you guys in good part.

Situation : Been driving 30km back and forth every day to get to my new job... and just as I go to leave work today, crank the 22RE up, it fires and suddenly dies. Try again and it dies faster and faster until it does not fire at all. (seems as the left over gas was burnt) (I drive a lot and sometimes I can drive long distances on an empty tank just as a quick information if it can help you guys solve this) And so first thing I did was run up to the gas station and fill up a tank with enough for it to start if fuel was the issue. BUT..No luck.

So having dealt with this weird 'Crank no start' situation I quickly popped the hood, shorted FP and B+ with a wire and tried again, no luck.

Checked the EFI fuse, and a general check up on most fuses that could be suspects and they all seemed to change nothing as I replaced them.

So what else can I look for? The truck is sitting at the parking lot.. don't have the money to pay 150$ for the towing + fix and I know this truck quite well all around so I'd like to try and solve this atleast temporarily to bring it home and get the rest done.

I tried hitting on the tank while cranking to give the pump a jolt if its jammed no luck either, so I'm hoping you guys can point to what is going on or somethings i can troubleshoot.

I'm beginning to think the pump may have died but am hoping not.

ToyPick · 05-11-2011, 11:03 PM

Update : I Worked on it today and ran a hot wire from the battery to the pump, turns out it spins fine and I got the car at home atleast...

The question is 'now what' ..

usually when its the CO Relay FP and B+ do the trick but not this time.

Could it just be my wire from wherever it comes from to the pump?

Thx!

jetwhine · 05-12-2011, 04:31 AM

Toypick,

I would say that you have a broken wire to the pump. FP to B+ should turn the pump on with the key in the on position. Did you not turn the key on when you checked this?

ToyPick · 05-12-2011, 04:41 PM

Thanks JetWhine, should I have continuity between FP and the positive terminal of the pump's wire?

If the wire is not the culprit, where else could I look?

jetwhine · 05-13-2011, 02:26 AM

ToyPick,

I would say yes on the continuity. Also do you have power at B+ with the key on? I would start by finding where the power break down is first. Then go from there.
When you run a wire from the battery to the pump you are bypassing the EFI relay and the key switch. So you should have power at B+ with key on. That needs to be checked first. If you have power there that will eleminate the key switch and the EFI relay. All the power for the pump comes from the EFI relay.
There is also a EFI fuse 15A that you need to check to see if it is blown if you dont have power at B+
There is also a 7.5A fuse from the key switch that will energize the EFI relay.
So there are still a few things to check. Let me know how it goes.

ToyPick · 05-13-2011, 04:21 PM

Ended up pulling the pump turns out the positive wire was loose and grounding on the pump's chassis. As I removed the pump I noticed it was put on backwards which also explained why the truck would act up so much when under 1/4 of the tank.

Something I did notice was my IGN fuse was indeed busted, but replacing it did not solve the problem so maybe it busted because of the pumps bad ground?

Quote:

Originally Posted by jetwhine

ToyPick,

I would say yes on the continuity. Also do you have power at B+ with the key on? I would start by finding where the power break down is first. Then go from there.
When you run a wire from the battery to the pump you are bypassing the EFI relay and the key switch. So you should have power at B+ with key on. That needs to be checked first. If you have power there that will eleminate the key switch and the EFI relay. All the power for the pump comes from the EFI relay.
There is also a EFI fuse 15A that you need to check to see if it is blown if you dont have power at B+
There is also a 7.5A fuse from the key switch that will energize the EFI relay.
So there are still a few things to check. Let me know how it goes.

jetwhine · 05-14-2011, 12:50 AM

ToyPick,

I'm thinking that the short could have caused the fues to blow. Sometimes things happen with no explination. But I'm glad you found the problem. Hope you have many more good days of 4 running.