IPD sale XeMODeX - Experts in Volvo Electronics

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by 800artfreed
Thu Oct 10, 2019 2:05 pm
Forum: Volvo 850, S70, V70, C70, XC models 1992-2000
Topic: Long Term Fuel Trim at 10% What is typical for a 1999 S70-GLT
Replies: 13
Views: 207
United States of America

Re: Long Term Fuel Trim at 10% What is typical for a 1999 S70-GLT

Some success. I have replaced all the vacuum lines for the EVAP/Purge valve system and another Purge Valve with OEM parts from a PnP. This is the line that originates at the (1999/2000 year) intake manifold's center nipple (approx: 1/4 " or 6mm diameter). I also reused the original 3-way adapter (se...
by 800artfreed
Sat Oct 05, 2019 8:01 pm
Forum: Volvo 850, S70, V70, C70, XC models 1992-2000
Topic: Long Term Fuel Trim at 10% What is typical for a 1999 S70-GLT
Replies: 13
Views: 207
United States of America

Re: Long Term Fuel Trim at 10% What is typical for a 1999 S70-GLT

So I just drove 500 miles today. The LTFT diminished to 8.5% when driving at 2500 RPM (about 70 MPH). BTW I used a Bluetooth OBD2 dongle with an Android phone application. This let me keep the console lid in the mostly closed position without stressing the connector cable from my OBD2 reader. In sto...
by 800artfreed
Wed Oct 02, 2019 9:20 pm
Forum: Volvo S40 & V40 Forum 2000-2004
Topic: Volvo four cylinder fuel trim data
Replies: 1
Views: 482
United States of America

Re: Volvo four cylinder fuel trim data

Some engines actually split the 4 cylinders into two sets. I would have thought bank 1 & 2 but I guess it could be 1 & 3. I would also think that this system would have more engine control sensors to measure performance of the different "banks"
by 800artfreed
Wed Oct 02, 2019 4:52 pm
Forum: Volvo 850, S70, V70, C70, XC models 1992-2000
Topic: Long Term Fuel Trim at 10% What is typical for a 1999 S70-GLT
Replies: 13
Views: 207
United States of America

Re: Long Term Fuel Trim at 10% What is typical for a 1999 S70-GLT

I thought I had made progress in getting the LTFT down. It was operating at 8.6%, down from 10.2% after some other vacuum line replacements but it has returned to 10% during local stop and go driving. I have tested the performance of my fuel injectors by using an injector pulse tool and fuel pressur...
by 800artfreed
Wed Oct 02, 2019 4:44 pm
Forum: Volvo 850, S70, V70, C70, XC models 1992-2000
Topic: If it ain't broke don't fix it (EVAP System Monitor) Topic is solved
Replies: 7
Views: 146
United States of America

Re: If it ain't broke don't fix it (EVAP System Monitor) Topic is solved

Some success. I have replaced all the vacuum lines for the EVAP/Purge valve system and another Purge Valve with OEM parts from a PnP. This is the line that originates at the (1999/2000 year) intake manifold's center nipple (approx: 1/4 " or 6mm diameter). I also reused the original 3-way adapter (se...
by 800artfreed
Fri Sep 27, 2019 6:33 pm
Forum: Volvo 850, S70, V70, C70, XC models 1992-2000
Topic: If it ain't broke don't fix it (EVAP System Monitor) Topic is solved
Replies: 7
Views: 146
United States of America

Re: If it ain't broke don't fix it (EVAP System Monitor) Topic is solved

Latest update. On the cycling of the purge valve I swapped valves with no difference. I then decided to check the previously replace 2 size vacuum line that comes from the center of the manifold to a T fitting. This contained the line that split along the length of the larger of the two lines. In th...
by 800artfreed
Thu Sep 26, 2019 7:01 pm
Forum: Volvo 850, S70, V70, C70, XC models 1992-2000
Topic: If it ain't broke don't fix it (EVAP System Monitor) Topic is solved
Replies: 7
Views: 146
United States of America

If it ain't broke don't fix it (EVAP System Monitor) Topic is solved

Since fixing a large split hose providing vacuum for the purge valve I got rid of my P0455 code. Checking the STFT and LTFT my 1999 S70-GLT is sitting at 10% LTFT. No check engine lights. I began a quest to try to get the LTFT lower. I smoke tested the engine twice and found 2 small leaks. One was o...
by 800artfreed
Sat Sep 21, 2019 4:53 pm
Forum: Volvo 850, S70, V70, C70, XC models 1992-2000
Topic: Long Cranking Time on 99 S70 GLT
Replies: 34
Views: 1470
United States of America

Re: Long Cranking Time on 99 S70 GLT

I just have to mention that you could have a LARGE vacuum leak on the line that connects to the intake manifold near the middle then goes to the drivers side into a T fitting. The size of the line is different at each end because there is an adapter in the middle of the line. Small line at the nippl...
by 800artfreed
Sat Sep 21, 2019 2:50 pm
Forum: Volvo 850, S70, V70, C70, XC models 1992-2000
Topic: Long Term Fuel Trim at 10% What is typical for a 1999 S70-GLT
Replies: 13
Views: 207
United States of America

Re: Long Term Fuel Trim at 10% What is typical for a 1999 S70-GLT

......I ran additional smoke test using my home brew machine. Smoke appeared from the intake pipe down near the PTC valve just after the nipple. As it is a PITA to remove and replace. I tried the propane gas trick to see if when the engine ran it would suck in propane and change the fuel trims. Ther...