I just spent $536.36 on a jetronic computer and a fuel pressure regulator. The car was not running so they replaced the computer. and they replaced the fuel pressure regulator because it was running to rich. It ran great for about five days. yesterday on the sixth day I started the car and it had a small sound like it was dieseling and when it would run at 1000 rpms for about 3 min and die. I started it back up and left to jury duty. This car putters when I try to speed up in any gear when it's cold. I unpluged the air mass meter to see if it was bad and the car would not idle right when unpluged. The plugs all have the same gap. But they are black on the ends. they are only about a month old. The question is why does my car stall after it has been idleing and why it bucks and stalls while im driving down the road. you can email me at volvo240guy@aol.com Thank you