Found the leak. It's in between thermostat and fuel injector #1. Way below. I can't reach it with my bare hands. I can't even see all the way through. I used a carb cleaner and sprayed down there and the engine rev'd up.

This looks like a big job to dismantle and put back. Any suggestions?

I am getting codes 113 and 232 from (A2) socket on my 93 850. Replaced IAC Valve, TPS and O2 sensor.

I need help locating vacuum leak. Any suggestions?

UPDATE:
I left the battery unplugged overnight. PLugged the battery back and now getting 214 code, RPM SENSOR absent.

I don't know where to start to troubleshoot this. Any recommendations?

I don't have a reader to pull up codes. My lambda light is now on.

My 93 850 has been having problems with the idle for a month now. I've recently replaced it with an after market fuel injectors, Volvo IAC valve and Volvo TPS. When the car's RPM drops below 800, I can hear a beeping sound (like a pager) near the fuel injector 1. Dont' know exactly where but it's cl...

How do you clean an MAF sensor?

Yes it can be cleaned - Get some throttle body cleaner and remove, spray, air dry, and replace. While you are waiting to air dry, remove the flame trap and dispose of it. Remove your throttle body and clean it up. Check the elbows on the vacuum system and put it all back together. Thanks for the ti...

Yes it can be cleaned - Get some throttle body cleaner and remove, spray, air dry, and replace. While you are waiting to air dry, remove the flame trap and dispose of it. Remove your throttle body and clean it up. Check the elbows on the vacuum system and put it all back together. Thanks for the ti...

White850Turbo wrote:You might also want to clean out your idle air control valve.

Can this be cleaned? Or do you just mean to clean the electrical connector and tube connectors?

Thanks for the reply.

I have a 93 850 GLT, 20 Valve, 5 cyl. I have recently replaced my fuel injectors with an after market supply after my dealer noted that I have several problems with the existing ones. The car ran well for about 2 weeks. Now, once the car is warm, the car would idle from 1200 to 1700 rpm every 3 seco...