Correct, I have DIY vacuum line in there.


Sorry to bring this thread back from the grave, but this is the only post I have found on the internet about this. My 850 is doing the exact same thing immediately after installing my own larger DIY vacuum line.

What was the outcome? Is it simply the ...

Volvo started SAS started on the p80 cars in 1996.



Well, our '97 GLT has it...Well, had it. It was dead when we bought the car, so originally I did the diode bypass in the original ECU, but now that we have the ability to flash the ECU, I just disable the diagnostics for it in the tune.

The ...

Is the SAS system working on your car currently? (Or do you have any idea?) It's possible it was dead to begin with and the VAST ECU was set to ignore those codes (I've done that on our car, as the system is removed). That code is for the air injection pump, it's wiring, or the relay.

The low ...

Okay. I just got home and installed the 460 ECU. The car started and ran, albeit with a low idle of roughly 3-400rpm and a CEL: EFI-445 Pulsed secondary air injection system pump signal. I have started Googling that with limited results thus far.

abscate wrote: 05 Oct 2020, 07:52 If you ever cross into Buffalo we can solve that shipping nut for you.

Exactly! I even have a mailbox in Niagara Falls NY that I have been using for years for car parts. Unfortunately, damn COVID has put a halt on my trips across the Rainbow Bridge.

You could actually drive the car with that ECU. Timing and loading maps will be different, but it would work enough to start it, etc without any glaring ETCs. It won't like the bigger injectors, so it would run a bit rich, however, but not enough for it not to start and run. Shame the previous ...

Sorry to hear that you are having trouble. Also, sorry that I am going to be that guy that asks...why?

What is the point of all of the reprogramming of the ECUs? If its a more or less stock turbo car, what can you expect out of an aftermarket tune?

IMnotsohumbleO, these cars are finicky enough ...

That should be fine for the test. You won't be able to drive it, as there will be no communication for the auto trans. That manual GLT is rare-ish, at least in the US.(You're in Canada, correct?).


There is one from a 1998 V70 XC AWD 2.4 LPT 0 261 204 460 a little further away. I tried Googling ...

Hrmmm.

Well, what you really need, just to make sure that there are no non-ECU issues is a stock 98MY M4.4ECU. It will plug in and the car will run (*should*) OK, but the AC won't work. (We tested a '98V70R ECU in the wife's car for a bit, but it was WAAAAYY too aggressive).

One from a '98 LPT ...

Chuck W wrote: 04 Oct 2020, 17:59 What are the last 3 digits on the ECU you're flashing?

That is a great question and unfortunately one I do not have the answer to. When Vast modifies the ECU's (bootloader switch and nipple) all of the identification stickers are removed.