89 Turbo Wagon intermitently running rich - Volvo Forums - Volvo Enthusiast Forum - Volvo Community - Volvo Repair
Volvo 700, 800 and 900 series Volvo 740, 760, 780, 850, 940 and 960

User Tag List

 
LinkBack Thread Tools
post #1 of 6 (permalink) Old 04-28-2009 Thread Starter
 
Join Date: Apr 2009
Posts: 5
89 Turbo Wagon intermitently running rich

I have owned this turbo wagon since new and did a complete overhaul on the engine and accesories 14K ago. It now is exhibiting REALLY poor performance. BELCHING BLACK SMOKE, will barely accelerate, fuel economy is 1/2 of regular. It had done this a couple of times in the past- once about 77K miles and the last about 250K. They went away in a short period of time.

When I did the overhaul- I had the injectors cleaned and flowed, O/H'd the turbo, new radiator, new water pump- everything EXCEPT the coolant temp sensor on the Left side of the block.

I live in Las Vegas, NV. The problem appeared this time when the outside ambient temperature got to 90 degrees for a couple of days. Then it cooled back down to the 70's during the day and the problem stopped. It is starting to warm up again and the problem is starting to re-occur. With these factors I'm trying to figure out if the outside ambient temperature is the cause and if so- what system I am dealing with. Right now it seems like a fuel problem rather than induction.

I can hear the the turbo spool up as usual with the normal readings on the boost gauge. The engine temp stays in the normal range.

Does anyone have an idea what can be causing this problem or where I should begin to look??

Lost in Las vegas.
turbodave2 is offline  
Sponsored Links
Advertisement
 
post #2 of 6 (permalink) Old 04-29-2009
Administrator
 
sulley007's Avatar
 
Join Date: Nov 2008
Posts: 688
Can you pull the codes or go to a local auto supply chain and see if they can.



sulley007 is offline  
post #3 of 6 (permalink) Old 04-29-2009 Thread Starter
 
Join Date: Apr 2009
Posts: 5
I am not aware that it has any type of OBD connector to read codes.
turbodave2 is offline  
 
post #4 of 6 (permalink) Old 05-04-2009
Junior Member
 
Join Date: May 2009
Location: Houston
Posts: 3
Dave,

Your OBD2 reader is in the console in front of the shifter. Do you have the Check Engine Light on? I would check your fuel regulator. It is under the fuel rail on the above the intake manifold.
pkc303 is offline  
post #5 of 6 (permalink) Old 05-04-2009 Thread Starter
 
Join Date: Apr 2009
Posts: 5
The only thing I find behind the ashtray well is the fuse buss and relay panel. The only light that would come close to a check engine light would be the SVC light which is the indicator that routine maintenance is due which is reset with a button inside the instrument panel.

I'll check the fuel regulator to see if that is the problem.
turbodave2 is offline  
post #6 of 6 (permalink) Old 05-06-2011
Junior Member
 
Join Date: May 2011
Posts: 2
I don't think an '89 has an OBDII connector.
A bad/disconnected fuel sensor sends a very very low coolant temp signal to the ECU. In some cases values like -35C which of course could mess up your fuel metering. The ECU would inject way more fuel than actually needed since it thinks engine and manifold are freezing cold.
Fabian is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Volvo Forums - Volvo Enthusiast Forum - Volvo Community - Volvo Repair forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
1995 940 wagon non turbo tom j Volvo 700, 800 and 900 series 0 07-19-2010 06:22 AM
1988 740 Turbo Wagon mwlportsmouth Volvo For Sale 0 06-04-2010 02:22 PM
po172-system to rich 850 turbo bobindelray Volvo 700, 800 and 900 series 2 05-04-2010 01:43 PM
95 Volvo 850 Turbo Wagon - IL Benjam83 Volvo For Sale 1 02-21-2010 09:06 PM
94 850 wagon (non turbo) tapping jcrntx Volvo 700, 800 and 900 series 7 10-18-2009 07:02 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome