I have an '89 740 Wagon and have misplaced my key. I have called a locksmith, but they are not able to reverse engineer a key.

Im to the point I'm pretty sure I need a new ignition cylinder, and I have looked locally, but have not had much luck.

I have seen them on Ebay, but if by chance someone ...

Found this info...here

Forums member Bramdeman replied:

Simply unplug the o2 sensor and go for a drive, if it behaves any different (popping in the exhaust, rough idle, stumbling engine) than the sensor was fine. If it makes no difference its probebly dead. One more way, take it out of the ...

Im pretty sure I recall hearing the IAC working, when I was able to run OBD tests.

I could hear the pump and injectors, I know that for sure. It seemed everything that was supposed to make noise..did....I THINK.

Im at a standstill and waiting for parts. Maybe now would be a good time to remove ...

So, just a drop in fuel pressure...not an issue, but check valve or an injector issue.

Early on I started checking vacuum lines, when finding a -small- amount of gas (not a huge spray when running though, I tried) are the Fuel pressure regulator. I replaced it with new.

Two FPR references get ...

I had seen that site before, Ive been trying to use and interpret the codes, but can be rather vague. As well, some symptoms may cause false readings in other components. I believe a too lean too rich code may or may NOT be the O2 sensors cause for fault...it could be a fuel issue causing an out of ...

No, seems quite solid. Im no body builder but it seems it would take a lot of effort to turn it or break it.

That connector looks odd.

On one side says Volvo 1362645

The other says SWF Germany 601 607

The plastic plug part is wider than 3/4, maybe 13/16ths.

I just had it in the freezer for about 30 minutes and it seemed to level out at what I believe is 14100 Ohms.

I don't think there is anything ...

Sorry ignorant question. ...

This is at about room tempreture. Would this read as 2410 ohms?
If so that should be within spec?

Maybe my plug is aftermarket but I couldn't get a socket to fit. The connector is in the way of the flats.
Nope, it says Volvo on it...?

This was done on a 1989 740gl

Step 1 Disconnect Battery
Step 2 Remove connector from ECT
Step 3 Remove connector from Knock Sensor
Step 4 Grind small corner off 3/4 wrench
Step 5 Remove ECT sensor

Done

It took me longer to type this than it did to remove the sensor....

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