My 97 Volvo 850 Glt Runs fine but it seems that when I take off from a stop it will missfire. I ran it for codes today but Im stumped with codes p0172 p0302.. The guy at the auto parts seems to think its an injector is bad.. Any help on this..

 

Using this website: http://www.iequus.com/support/obd2_definitions.php:
P0172: System Too Rich (Bank 1) - From a quick search, Tech has said this indicates a vacuum leak. Also, see this thread which sounds similar to your issue: https://volvoforums.com/m_57903/tm.htm.
P0302: Cylinder 2 Misfire Detected - See here: https://volvoforums.com/m_52986/tm.htm, you might want to check the plugs/wires/distributor.

I'm sure someone else will have a better (more knowledgable) description of what to check for.

 

Last tune up?

 

Well Im not sure.. This is the ride that I just bought.. I really havent had time to do a tune up yet , been to busy. Im doing a Tune up this week. I did how ever pull plug number 2 and it looked fine. But that can only tell me so much. It seems to miss more now and only when its under load not at idle or if im easy on the gas pedal.

What do I need for a full tune up? Im figuring plugs,cap,rotor, wires ( those look to have been changed before) fuel filter.

It just seems wierd because the car will idle fine, drive fine if Im easy when I give it gas but the moment I give it any Im getting the annoying misfire.

 

If you look closely at the wires if they are OEM there will be a date on the wires in either Yellow or white writing.

Yes do the Cap,rotor,wires,fuel filterand plugs.
My white one did the same thing when I first bought it.
Acutally so did the yellow one.
Both had orignial wires on it.

 

I didnt see a year on them but they were blue with silver writing..7mm or something likethat.

Im loving this car more and more all the time.. Im not even driving mySaleen anymorejust once in a while.

 

I would get allOEM parts.The 97 GLT is a low pressure Turbo, so you will want the turbo plugs. They run about $30.00 for a set. If your dealer charges much more than that try some of the links pinned to the top of this forum. I've bought tune up parts from volvoparts.com:

https://www.volvoparts.com/index.asp

They have good prices on tune up and brake parts. I also use fcpgroton and IDP.

Good luck!

 

I just hope that the tune up parts will solve my problem.. Its just wierd that its only under load.. Because other then that it idles fine and is smooth.

 

Would buying the tune up parts at Autozone be ok? THey have a set of Bosch plat plugs and wires at my local auto zone. I just hate to wait7 days for these parts thru mail order..
However there is a local volvo dealership but I hate to pay thru the roof for parts.

 

You will not get OEM at any place other than the dealer or fcpgroton type places. Autozone, Advanced, NAPA etc will not have OEM. When I order from fcpgroton on Wednesday, I have my stuff on Friday at the latest. That's not bad. If I really wanted to do it this weekend, I would just go to the dealer. Would only cost you another $10.00 give or take a few dollars.

At volvoparts.com the plugs are $30, wires $65, cap $30 and rotor $18. That's $143, plus you will pay some shipping. The prices at fcpgroton are almost identical, but shipping would be more from CT. If you live in California there are places you might be able to get them cheaper too.

Call the dealer and ask what they charge. My local dealer gives me 15% off list because I belong to VCOA, so I buy quite a bit there.

 

Shipping is free from eEuroparts.com once you get over $39 (if shipping cost is an issue). I have gotten parts from them in just a couple of days (from CT to AL).

 

Ok I took it in the , Umm I mean I went to the dealer and bought all Volvo Parts. Yes I could have gotten them cheap but I hate mail order and I hate waiting LOL...
well I just finish the install Plugs,wires,cap,rotor air and fuel filter. The plugs and wires looked to have been changed before but the Cap,rotor and fuel filter all look like they came from 1997. The car started right up and seem to even idle a lil more smoother then before. I did a 20 mins test drive and no miss. The true test will come tommorow when I take it to work.

 

It doesn't hurt to support your local dealer, to some extent. Make friends with the service advisors and parts guys. It can pay off later. They are a wealth of information. I would guess that most of the info here is directly or indirectly from the dealers.

3B

 

well the car still has a problem, its not missing like before but its got like a Jolt to the car almost like the car is turned off for a second and then turned back on.. Other then this occasional jolt its running good..

What could be wrong, I changed the plugs,wires,cap,rotor, air and fuel filter.. HELP!!!!

 

Maybe clean the throttle body and idle motor.

 

please take a look on last column of my responds on P0172
https://volvoforums.com/m_77045/tm.htm

 

And for your future reference,

https://volvoforums.com/m_48928/tm.htm

Also, next time plan ahead and try FCP Groton/eEuroparts; the cost would be considerably less and the shipping is usually only a few days. You could perhaps buy some minor parts from the dealer once/while, and then buy major parts from on-line vendors. I do agree with Tripleb that if you become friends with parts/service dept you can learn a good deal of expertise.

FYI:
http://www.fcpgroton.com/volvo.htm#850
http://www.eeuroparts.com/home.aspx

Best of luck to you,


JPN

 

SVT, this post is old, but it sounds like the o-rings on your injectors are leaking. Link below to get a descripton on how to service your injectors, it's fairly easy but you have to be careful and replace ALL of the parts you can. It's not expensive, either, just time consuming.

http://www.swedishbricks.net/700900F...ector_Cleaning

Even if you have low miles on the car, the rubber has gotten really old. Don't try to clean the injectors at home, find a shop with a good pressure washer. You're only going to need to do this a couple of times in the life of the car. Your fuel economy may jump up, too. Worth it!

 

SVT, I posted a response to this now-old question, it's at the bottom of the thread, another member received it, I replied in the wrong place. The link on the reply is here:

http://www.swedishbricks.net/700900F...ector_Cleaning

Good luck, I hope your running problem is solved. If not, try the link.