What did I get into? Volvo 760 1987

Gilbert · Post by **Gilbert** » 05 Oct 2005, 07:14

I just bought this Volvo:
The serial number tells me it is a turbo model but It does not has a turbo and the engine is a 230f
The problem is that I connect the battery and that the engine starts fine and 30 seconds after driving it starts to shut down after that it only idles fine but whein I try to give it gas it bogs down, I think it works in "limp home" mode the first 30 sec. and then the computer gets crazy
The Haynes manual has me more confused. Is there any good manual online for this car?
Any help will be appreciated
http://cgi.ebay.com/ebaymotors/ws/eBayI ... AMEWN%3AIT

johnny3000 · Post by **johnny3000** » 02 Dec 2005, 16:28

I don't know much about these cars yet, but while I was troubleshooting on my 85 240 I disconnected the air mass meter, and it would idle fine, but when I gave it a little gas it would bog down immediately.
According to the haynes manual the car probably won't start if it has a bad amm though.

Guest · Post by **Guest** » 02 Dec 2005, 20:12

for 395 you didint get hurt much. If you find you need an air mass sensor new ones are very expensive but you can get used ones quite reasonably. they really are great cars, you just have to figure out what is wrong with yours.

Guest · Post by **Guest** » 03 Dec 2005, 12:47

The IAC supplies the air at idle and seems to be working on your car. When you step on the gas the throttle body begins to open and the air mass takes over. Things to check:

That accordian looking hose that runs from the throttle body to the air mass sensor. If it has any holes in it then the holes let unmetered air in and your car stalls because it is way too lean.

Unplug air mass sensor and see if it runs better if it does buy a used air mass sensor from www.car-part.com make sure you get the same number.

Check the throttle position sensor to make sure it is adjusted properly (should just click just as throttle closes) and if you check it with ohmeter it should rise smootly as you open the throttle no dead spots.

Guest · Post by **Guest** » 03 Dec 2005, 14:09

The above things to check are excellent (i wrote them) in addition it is a good idea to check all your grounds to the engine, fuel injection, etc. This probably is not your problem but with any fuel injected car the signal voltages are quite small some (.1-.9v) and any extra resistance in the circuit will tend to screw things up.