Volvo 850 Repairs & Fixes
Volvo 850 Repairs & FixesHere is a legacy list of various 850 repairs I’m moving to the VRD, for posterity. Replacement of entire sunroof system Member, atikovi was having trouble with the sunroof...
View ArticleECU Failure in a ’99 V70-XC
ECU Failure in a ’99 V70-XCA rare ECU failure, something that’s becoming more common in Volvo P80 models as they age. Here’s what it looks like from a diagnosis viewpoint. 1999 V70XC I’m stuck – I need...
View ArticleDo our cars get used to one brand of fuel?
Do our cars get used to one brand of fuel?MVS Forums Member huzzsaba: Recently on a road trip, I filled up like I usually do at Canadian tire and got decent gas mileage that I usually get which is...
View ArticleScan Gauge II Reviewed
Scan Gauge II ReviewedI'm a little bit of a number geek and like to know what is going on with certain things all the time. So I decided to purchase one of the Scan Gauge II code scanner, etc., from...
View ArticleTroubleshoot Heat Soak ECM, BCM, CEM, & TCM
Troubleshoot Heat Soak ECM, BCM, CEM, & TCMDetailed thread from hankb on troubleshooting ECM DIM CAN bus as function of heat and humidity: This is my second post on this forum regarding the same...
View ArticleVolvo 850 M56 Swap DIY w/ Photos
Volvo 850 M56 Swap DIY w/ PhotosMVS Forums contributor polskamafia mjl just wrote what may be the best Volvo Auto-to-Manual swap DIY on the Web. M56 Swap Overview This is a write up for replacing the...
View Article1999 V70 T5 PCV Intake Manifold Re Installation DIY
1999 V70 T5 PCV Intake Manifold Re Installation DIYThe late P80 cars have thermostatted PCV. Yeah! I'm convinced they clog much less than early P80s. I changed my oil with Dino every 5k with this car...
View ArticleSpeed Restoring a 1998 XC70 in One Week
Speed Restoring a 1998 XC70 in One WeekMVS Contributor and #1 Volvo ABS module rebuilder Matty Moo plans to restore this XC70 in one week. Man vs. Car. The bad: steering suspension misfiring no speedo...
View ArticleBluetooth OBDII Connect To ECU
Bluetooth OBDII Connect To ECUMVS Forums contributor ESL explains how to connect to your Volvo’s ECU via Bluetooth adaptors: Torque uses the standard OBDII emission diagnostics. If you can’t connect...
View ArticleFuel Relay #103 — Is it Really Necessary?
Fuel Relay #103 — Is it Really Necessary? For MVS’s 1500th (!) Volvo Repair Database entry, I bring you what is probably the most technical post in the VRD: jose456891‘s Fuel Relay #103 — Is it Really...
View ArticleWhich ELM 327 To Buy?
Which ELM 327 To Buy? So you want to use a phone or tablet to access your Volvo’s codes, reset procedures, and all the goodies you’re locked out of without an expensive scan tool. Since the age of...
View Article2000 S70 ABS Issues?
2000 S70 ABS Issues? MVS Forums member Russ B documented his ABS and STC lights scenario: Here’s the low down. I leave work tonight, driving slow around several 90 degree left & right turns. On one...
View ArticleXeMODeX is a MVS Sponsor!
XeMODeX is a MVS Sponsor! We’re proud to announce XeMODeX is partnering with this site to bring all of us information and Volvo troubleshooting solutions. XeMODeX cut its teeth developing and marketing...
View ArticleThe Birth, Life & Death of an XC90 T6
The Birth, Life & Death of an XC90 T6 Ok, that title was a little dramatic, but that’s the idea. MVS member XVTer bought a 2004 XC90 T6 a few years ago for his wife. In between the buying date and...
View ArticleRWD Volvos Have PNP Switch Flashing Arrows Too
RWD Volvos Have PNP Switch Flashing Arrows Too MVS member Bob had the common flashing arrow light on the dash of his 1995 960. While looking at the wiring harness connector (8 sockets) that plugged...
View ArticleECM Airflow Motor is Important
ECM Airflow Motor is Important MVS Contributor oragex made a video speaking about the importance of the ECU/ECM airflow motor. ECM airflow motor is important for keeping your car’s computer cooled down...
View ArticleNew ETM Dead out of Box
New ETM Dead out of Box MVS Contributor precopster ran into a frustrating problem: a bad Magneti Marelli ETM… a new ETM dead out of the box. As if Volvo owners didn’t have enough trouble with 1999-2002...
View ArticleMore Manual Transmission Swap Tips & Tricks
More Manual Transmission Swap Tips & Tricks MVS Contributor tryingbe goes ALL OUT doing an auto to manual transmission swap. He has outstanding information and warnings on what to buy, where to get...
View ArticleDIY ETM
DIY ETM MVS Forums member Yehuda explains how he fixed the ETM on his 2001 S60. This should be similar or identical to all P2 Volvos with the Magnetti Marelli module. ETM SOFTWARE RELOAD did work, now...
View ArticleDecrease your chances of CEM or DIM failure with a FAN
Decrease your chances of CEM or DIM failure with a FAN mrbrian200 had a goal: extend the life of and/or prevent temporary freakouts of the CEM and DIM modules in P2 Volvos. It’s a simple yet brilliant...
View ArticleTo buy or not to buy a 99 Volvo V70 XC AWD
Salvage means it was WHACKED and I mean Whacked. We can fix anything in our shop, but a door does not total a Volvo. The rocker panel,door post, and more had to be rebuilt. If a good shop did the work...
View ArticleV70XC not fast enough!!
Making an XC70 Faster For very little time and money you can do a Stage 0 and $25 Ram Air Intake. That would put you in a nice place maintenance-wise for any future upgrades like ECU chip (discussion...
View ArticleTips and Hints for XeMODeX ETM Installation
Replacing your ETM? Some Tips from an ETM Manufacturer It’s has been over a year since we have introduced the Non – Contacting ETM upgrade. The purpose of this post is to make all of you Do It...
View ArticleNewer ETM in 2001 V70
Somewhere in the many pages I have read here (I think) I read that the ETM from P2 models could be used from years 2001 – 2009, is this true? If this is possible, myvolvopartsonline.com has a 2003...
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Performance & Troubleshooting: KISS Your Throttle
I remembered this tip from my days driving my grandfather’s-passed-down 1971 yellow/black, 2-dr Dodge Dart 318 V8 with “Rallye” wheels (somewhat rare). He bought it new off the lot here in Denver when...
View ArticleReading Actual Mileage from OBD-II
Member takane2 gives us information on how to make a scan tool for the OBD port that emulates the under the hood diagnostic port. This is great news as through the OBD port, with the home made device...
View ArticleUsing an R ECU in a Turbo
Using an R ECU in a Turbo What happens when you use an 850 R ECU in a regular 850 Turbo? 850R ecu in Turbo model? The post Using an R ECU in a Turbo appeared first on Matthews Volvo Site.
View ArticleTroubleshooting Low Boost
Underboost is a condition that can be caused by several issues including: Bad TCV Bad Turbocharger Failed boost sensor (for models that have them) ECU seeing overboost and cutting back until reset and...
View ArticleDo the IPD Chip? Exhaust?
This Volvo Forum topic started as a question about identifying a modified ECU by simply looking at it. Then it morphed into straight performance talk. Could I feel the difference between 236hp and...
View ArticleVolvo S60: Sorting out ETM vs Transmission Problems
Installing a new rebuilt transmission without doing the following is fruitless: Full transmission fluid flush Go to a dealer or Volvo indie shop to get rid of the stop neutral transmission “feature”...
View ArticleReset Your Volvo’s Computer = Big Difference
How to do the reset? By simply starving the car’s ECU of electricity. How to Zero out Your Volvo’s Computer and Make it Re-Learn your Driving Style Since all 1990s and 2000s Volvos’ ECU’s have volatile...
View ArticleRough Idle when Warm – V70
ETM cleaning solves idle, MPG problems About 2 years ago, after a major service (approx 110K) I noticed that the idle was a little odd and seemed to hunt slightly on occasions. Over the last 2 years...
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Chip Tune vs. Manual Boost Controller
I shot an email over to my favorite Volvo speed genius Lucky, of Active Research & Development, formerly of iPD, MVS sponsor. He was happy to give his thoughts on the question Chip or Manual Boost...
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Fast Friday #4 — The Boost Variance Problem
Join us for our weekly Fast Friday discussions in the Volvo Performance Forum. They’re posted every Friday, with the purpose of providing understanding of not only how to add performance to your...
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Fast Friday #5 — Injectors, MAFs, and Power
It’s interesting to note that cars with even stock turbochargers are able to max out a MAF sensor as early as 14psi. When I say “Max out the MAF” what I mean is exactly that. The MAF sensor can only...
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Fast Friday #6 — Injectors, MAFs, and Power pt. II
As performance levels rise so too do the necessary supporting components of the engine to reach the power goals you might have. Most fuel system upgrades are pretty straight forward and only consist...
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Review: ARD Green Tune
Another ARD Green Tune Review MVS Volvo Forum user ojdorson writes “It was a real pleasure to deal with Lucky. After a few quick e-mails, I decided to go with his recommendations – ARD Green Tune with...
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Octane And The Turbocharged Engine
Question If higher octane fuels take more energy to ignite and take longer to burn then how can they be considered advantageous when measure against lower octane fuels? Answer Any time you compress...
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How to access ECM & TCM on 850, S70, V70, XC70, C70
How to remove ECU and TCU Modules MVS Forum member gchelidze tells us in text and (24!) photos how to access your ECU and TCU modules from under your Volvo 850, S70, V70, XC70, C70’s hood. He writes:...
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Fuel Cutoff w/ Stock ECU + MBC
Click through for a video example of the Volvo ECU cutting fuel after the parameters go off the map. Now that ambient air temperatures are very low, 9°F (-12°C), the air-fuel mixture is so dense that...
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Piggybacks & SAFC… it’s Fast Friday #27!
ARD owner and tuner Robert “Lucky” Arnold writes When I started tuning years ago the only thing approachable was using a piggyback ECU to adjust fuel and timing on my LH fueled RWD Volvos. Of all the...
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E85 Fuel & Performance
Ethanol is Awesome! Really? Lucky at ARD this week writes about E85, what I believed to be pure evil when taken in the context of efficiency and performance. Not so. “Burn temperatures are lower,...
View ArticleWould Not Buy Again, 2002 V70 N/A
Here is a very interesting post by MVS reader Mike: I just did the Xemodex ETM rebuild a month ago and the problem is completely gone. The 2002 V70 non-turbo has 185k miles on it. I am a moderately...
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Tunes: Does One Size Fit All?
What to Look For in a Chip Tune Lucky of ARD tells us what to look for when shelling out our cash on ECU flashes/chip tunes/”tunes”. This weeks Fast Friday will be a bit on the short side since we’re...
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“628” R ECUs and 850s
MVS Forum member northernlights started a very interesting thread about swapping in R ECUs: “So, I recently installed a 628 ECU and it works great. It feels like I have a little more boost everywhere,...
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Opinions on Manual Boost Control
In response to a request for opinions on how to safely boost a V70, MVS user pkplok posted this link which is specifically about boosting Volkswagens but should work for Volvos as well. Additionally,...
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SAS Delete Theory
MVS Volvo Forums contributor CN90 shares how the SAS delete works: For those of you who also own Volvo, you would be familiar with “SAS Delete”. Remember that virtually all European cars (Volvo, VW,...
View ArticleETM Code P1657 Fix
MVS Forums member JBRollo: I have been trying to fix a code P1657 on a 2000 Volvo S70 for about a week. No other symptoms at all. Finally noticed that the ETM warning light was not lighting up on...
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1998 vs. 1999 Changes & Differences
Well, what are they? MVS Forums member (hey, it’s free, why not register?) j-dawg and the rest of the crew answer this important bit of Volvo trivia. This is actually one of the more interesting bits...
View ArticleHow to Diagnose a Bad ECM/ECU on a 2001 XC70
MVS Volvo Forums member jcb went to great lengths to isolate the ECU in his 2001 XC70. He did work to make sure it was the culprit. This forum topic is how he diagnosed a failing ECM/ECU on his P2...
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