355 Code issued P1452 Secondary Air Pump Circuit: Open (tig) not present:

Note that you can get some cheap versions of these (Volvo or aftermarket Volvo). You don't have to pay $300 each.

Volvo P/N 1266665

https://www.ferrarichat.com/forum/posts/147902709/

Normally, Secondary Air malfunctions are sensed via the O2 sensors. The code suggests an electrical issue, but I guess it won't hurt to check the other stuff.

 

OK. Thanks. Let me get it on the lift and look again.

Based on what I am looking at, the air is injected into the headers after the valve (13) is pulled open by the solenoid (8) via vacuum from the tank.

Where does the tank get the vacuum from? The line "out" of the tank goes to the fuel pressure regulators.

 

The vacuum tank gets its vacuum from the intake manifold, via one way valves (2)

 

Some solenoid valve issues have been partly fixed by cleaning the electical connectors on them.

This exhaust bypass issue was fixed by replacing the plastic vacuum check valves and by cleaning the connector on the solenoid valve.

https://www.ferrarichat.com/forum/posts/149163967/

If your exhaust bypass valve is working, you should have a decent amount of vacuum going to the solenoid valves.

 

Not to leave this just hanging out there, I think I found my issue.

The white connector next to the ECU had a connector lead that appeared to be backed out of the block. @Qavion, it was one of the corner ones but forget the number or colors. Does that make any sense in your wiring world?

I should have taken an image but didn't. Too busy cleaning it all up, refit the connector in the block and connected the blocks together.
I also pulled the ECU and checked all the pins. Dexoit and then Stabilant 22 to finish it all up.

300 miles this weekend and it never triggered the CEL. Need to check pending codes, but it usually happened pretty quickly.

Thinking I may swap that white connector block with a WeatherPak unit this winter.

 

That certainly looks like a standard mabuchi rs-540 motor....

 

I have no idea what it is. They took the tag off. BASTARDS!

12 volts.
RPM is unknown
Frame dimensions:

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Interesting. Usually the other small connector is prone to issues. I guess all of those ECU plugs are prone to damage as they are pulled through the firewall during engine outs.

The yellow/blue wire on that plug (on one of the corners of the plug) controls the Secondary Air Relay. I sometimes recommend checking that wiring for secondary air problems simply because it's part of the circuit, but I think this is the first time I've heard of this wiring failing.

 

Scroll through the 12v motors in related products to find one with the correct dimensions, it's most likely one of them. They're fairly standard.

https://banebots.com/m5-rs540-12/

Based on the pics/dimensions you posted it looks like an RS775.

https://banebots.com/m7-rs775-12/

 

Blue / Yellow sounds correct actually.

My white connector block is pretty beat up.
The plastic clip across the back that holds the leads in is cracked.
Inspiring confidence in the previous effort, the shop that did my last engine out used a zip tie to hold the backside together.
Thought I checked it all when I put it together, but looks like when I pushed the wire loom back in place to put the cover on it must have slipped back out.

So, the wire didn't fail, but the connector did.
WeatherPak seems like the right move next.

 

RPM is the question. 8,700 - 18,500 options exist in that frame size.