Another P1300/P1310 problem.

Alright tacomaworld I’m asking all the 1st gen gurus and maybe just a lucky guy who had this problem and fixed it to lend me their power to remedie this issue that has had my precious parked for over a year now. Here’s the details

98 2.7 4x4 manual. This started a year ago. She had been my ol reliable and my daily with no issues whatsoever. I left her parked for a month and when I came back to her she would give me really random stalls, some while parked, some after a few miles, some at a red light or the highway and she would crank every time I tried to start but not always did she fire back up. She could make me wait a few minutes or cranks before she started up again and the duration she would stay on was again random.

well a buddy convinced me it was my fuel pump so I went and did that (figured 190K miles was good enough on it) and yes I got a denso. Did that, no fix. So I finally got around to reading the codes and she had a P1300 and 1310. Well there isn’t a full proof answer for what causes that sooooo I turned her on one time and notices she turned off whenever I would wiggle the wire going to the crank sensor. Sooooo I did that. I would like to note that after every stall at this later point after the fuel pump I would need to clear the code 1300/10 before she would fire again, idk why. So I replaced the crank sensor again with a denso.

took her out today and no joy, she still dies and gives me code 1300/10 every time BUT I noticed something new, she dies at 2000k. I tried going down the street and she went down when I got to a straight part and there where cars behind me so I started again and tried to slam it and she died. So I limped her home and noticed it 2 more times. Well I park her at home, turn her on an she idles perfectly!....but I stepped on the gas and hit 2000k and she died right on the money.

somebody PLEASE give me some actionable info to go on, I’m gonna need this truck as a daily again soon! :’(

 

On the 3.4 it shuts off the fuel not sure why it would not do the same.

PO 1300 means the ECM is not seeing that igniter#1 is working so it shuts off the fuel to what it thinks is a non running engine.

PO1310 is igniter #3

Anything in the complete circuit to the ECM to the igniter itself

Did you have the plugs removed from the igniters.

Try moving them see if the code changes that will tell you if it is the igniter or the harness side

It can be as simple as corroded connections or bent pins broken wires

 

This is a good suggestion for OP.
Does your 98 2.7L have a coil pack on each cylinder? I'm not quite sure when Toyota dropped the distributor style ignition and went to individual coil pack style.
Move coil pack #1 to the #2 cylinder and vice versa if you have individual coil packs for each cylinder.

 

Not sure but if The OP is getting a PO1310 code I venture they have the 4 igniter coil packs I can`t see how that code could trip any other way .

Only the PO 1300 is in the 3.4 fault codes just one igniter.

 

My 2.7 has 2 coil packs, I’ll pop them off and switch them but if only 1 is faulty then what code would u get for when I switch the position?

 

I see you have a Federal Engine not California so the PO1310 is the second igniter

Which means the ECM is thinking they are not working .

 

Yup, just got to my Tacoma to confirm, 1300 says circuit 1 and 1310 says circuit 2. Soooooo swapping them isn’t gonna do anything does that just leave my ECM?

 

Anything in the complete circuit.

evil bushy tailed rodents chewed wires .

Did your Engine get soaked or the ECM like in a Flood ?

Water or a Voltage spike can mess with these things about all that really does.

 

Oh just the two coil packs, I forget there is a 3RZ with distributor, one with 2 coil pans and plug wires and the one I have is 4 individual coil packs, 1 per cyl.
Yeah I think you're on the right track. Without a seperate igniter in the circuit, assuming all connectors and wires are in proper shape, ECU would be the next check.
You may be able to pull the ECU and remove the cover and see right away what's going on.

 

I wanna say no, might have gotten rained on a bit but it was in a parking garage the whole time so definitely no flood. I went to start her up an again she idles perfect and this time I tried Erving her up a bunch over 2K and she didn’t die but it’s a bit late and my neighborhood ain’t the best for getting stranded in lol

 

Ok I have seen videos on removing it and it doesn’t seem hard to I’ll try to take her for a spin tomorrow and then pull it out if she doesn’t make it far lol

 

Before pulling things apart make sure the igniter/ coils are indeed good.

Do you know how to test them??

How many miles on the engine?

What codes if any where pulled back when this first started or none to just now?

If it was in storage unless the building was underwater then water is not the problem.

Sitting that long unless this parking garage was spot on with pest control they like to explore and raise families

Was the fuel filter changed with the fuel pump and not mentioned .

you did get some fresh gas in after all this time and your not running on fumes

You might have two different problems

 

Ecm’s are cheap anyway... I suspect harness trouble....

 

OP stated it just completely shuts down, if it was fuel related (pressure, filter) he’d experience some stumbling, bucking before the grand stall. I’m with you regarding the harness. Needs close inspection

 

So the igniters are built into the coil packs and the code comes up for both, so it seems unlikely that there just happens to be a problem with 2 wires at the same time going between the computer and coil packs. I'm guessing maybe there's an engine ground problem (maybe loose) which would explain why it cuts out at higher RPM when the engine is trying to generate sparks more frequently. Or it could be the common source of power for the coil packs. I don't have a wiring diagram, but I'd look to see where the coil packs share the common power source and common ground.

 

Then sitting for a year in never good if the OP has ethanol gas where he lives.

I have blocked fuel filters that will run so long and quit like a switch walk away for 30 minutes and repeat .

ECM`s are cheap we must have a different definition of cheap last one I bought was $900.00

 

Ok so here we go

1) I do not know how to test them
2)190k miles
3)always been the same codes; 1300 and 1310
4) no animal problems I can see, pretty clean Area anyway
5)no new fuel filter, only the pump.
6) yes I refilled with new gas since I emptied the tank to drop it
7) correct on the no stuttering. There’s no drama it just shuts down like as if I had turned the key
8) found a used ECM on eBay for $100 but if it’s that I’ll spring for a new one and yeah they ain’t cheap lol anyone know how to diagnose that?
9) does anyone know where the grounding points are? The only blatant one I know is the firewall one but I see there’s a brown thicker wire that goes to the shielding of the headers, is that one? Looks like it’s coming from the same loom as the wires going to the igniters.

 

There should be 3 brown wires together some place near the throttle body ECM ground

2 White/Black wires for the igniter coils should be around the right front of the head might be other circuits using the same spot.

Wire colors could be wrong but the location should be correct .

I have to dig out the igniter trouble shooting

 

I’ve been chasing a similar ghost. I took my 97 2.7 on a test drive to the river, no cell reception, and 75 miles out, out of the sky it dies. Pulled over, pulled codes, and p1300. Reset from reader and no start. Pulled negative. No start. Reset ECM again after pulling p1300&1310, pulled negative, started up drove it all the way home without a hickup. Runs like a top when it starts. Duel coul packs were replaced due to these codes earlier on along with crank sensor, cam sensor, computer, starter, and ground points being cleaned up and adding extra grounds. Engine is the cleanest I've seen.
Any ideas are welcome. ( i am going to get New coil packs OEM).

 

Don`t forget it is the complete circuit poor(loose) or corroded connections also grounds .

Chomped on wires from Evil Rodents