V70 won’t start. Out of ideas.

Post by **volvolugnut** » 24 Jul 2021, 18:01

These plugs do not look to be a problem for soot, but the gap looks wide. Did you gap the new plugs? Proper gap for this engine is 0.7 mm (0.028 inch). Yes, it is small, but that is what the turbo gap should be.
volvolugnut

Vaswamp · Post by **Vaswamp** » 24 Jul 2021, 18:20

My dumb a** did not. They looked similar to the old ones and it didn’t start before I changed, so I marked that off my list.

Thanks again volvolugnut. I’m going to pull them all in the morning and test the gap.

I’ll update them, hope to update you with better news….thanks again!

Post by **volvolugnut** » 24 Jul 2021, 18:24

Good luck tomorrow!

volvolugnut

Vaswamp · Post by **Vaswamp** » 25 Jul 2021, 09:14

Update. It finally turned over!! Great news, but now it runs like a dog and I’ve got these codes:
p0201 p0202 p0203 p0204 p0205

Any ideas? Assuming I forgot something here, I know I’m close to fixing this thing.

Thanks again!

Vaswamp · Post by **Vaswamp** » 25 Jul 2021, 09:40

I should add a re-gapped all the plugs. I shouldn’t have trusted the “oem pre gapped” claim from advance auto. Thanks volvolugnut!

Post by **jonesg** » 25 Jul 2021, 11:12

Injector circuit,
you never said if the car was left in the rain with the hood open, if it was then you should check the computer box next to the coolant bottle. Water on the ECM contacts would play havoc such as you have now. Same for the fuses and relays in the engine bay.

Vaswamp · Post by **Vaswamp** » 25 Jul 2021, 11:18

No water got into those areas, thankfully I had waterproof pads over both sides. I checked my ecu relay, it’s opening and resistance checks out.

Thanks for your help.

Post by **volvolugnut** » 25 Jul 2021, 11:26

Vaswamp wrote: 25 Jul 2021, 09:14 Update. It finally turned over!! Great news, but now it runs like a dog and I’ve got these codes:
p0201 p0202 p0203 p0204 p0205

Any ideas? Assuming I forgot something here, I know I’m close to fixing this thing.

Thanks again!

Google all those codes to see what they are. Then search this forum for likely causes.
A quick check shows problem with all of the injectors. Another post talked of loose injector connections. Check that the injector connections are dry and secure.

volvolugnut

Post by **jonesg** » 25 Jul 2021, 11:35

Vaswamp wrote: 25 Jul 2021, 11:18 No water got into those areas, thankfully I had waterproof pads over both sides. I checked my ecu relay, it’s opening and resistance checks out.

Thanks for your help.

Ok then, back probe the injector connectors and monitor whilst cranking or running, should be ...what ? 5 v?
The injector connectors can easily allow water to flow down into the socket, unplug a couple and look for moisture.

Vaswamp · Post by **Vaswamp** » 25 Jul 2021, 11:50

3.46 Volta at cranking on each injector connector.