IPD sale XeMODeX - Experts in Volvo Electronics Volvo modules repair and programming
Please use the MVS Amazon link when you buy anything at all! It helps this site. Thanks very much!

Get email notification of topic replies. Log in or register (free). Amazon Link Buy anything with this and it helps MVS!

1999 V70T5M56 ME7 batch fire or sequential fire of fuel injection

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

Post Reply
User avatar
abscate
MVS Moderator
Posts: 22822
Joined: Sun Feb 17, 2013 5:54 pm
Year and Model: 99T5 ,99S70,2005V70
Location: NYC, ALBANY NY
Has thanked: 387 times
Been thanked: 1219 times

1999 V70T5M56 ME7 batch fire or sequential fire of fuel injection

Post by abscate »

I had highway time on a trip , so hooked up the AUTEL in data mode and found its

(E) none of the above

It looks like ME7 fires the injectors in two banks, as evidenced by this

(Pic)

Other trivia

On over run, the throttle plate closes to 20% and the fuel injector time drops to about 2 msec, ignition timing is retarded , probably to protect from lean running

I tried To measure max boost but there were too many cops

I can drive up to 65 mph with no or minimal boost, then it starts boosting on slight hills

Max turbo control duty circle seems to be about 60%
IMG_1101.jpg
IMG_1099.jpg
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary
User avatar
abscate
MVS Moderator
Posts: 22822
Joined: Sun Feb 17, 2013 5:54 pm
Year and Model: 99T5 ,99S70,2005V70
Location: NYC, ALBANY NY
Has thanked: 387 times
Been thanked: 1219 times

Re: 1999 V70T5M56 ME7 batch fire or sequential fire of fuel injection

Post by abscate »

The powertrain management electrical diagram shows that each fuel injector on ME7 has its own ground (they have a common 12V)- I wonder if/why the still fire in only two banks?
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary
User avatar
RickHaleParker
Posts: 4776
Joined: Mon May 25, 2015 2:30 pm
Year and Model: See Signature below.
Location: Kansas
Has thanked: 3 times
Been thanked: 616 times

Re: 1999 V70T5M56 ME7 batch fire or sequential fire of fuel injection

Post by RickHaleParker »

Sloppy translation ...?
1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000.
2004 S60R, B8444S TF80 AWD.
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0.
User avatar
abscate
MVS Moderator
Posts: 22822
Joined: Sun Feb 17, 2013 5:54 pm
Year and Model: 99T5 ,99S70,2005V70
Location: NYC, ALBANY NY
Has thanked: 387 times
Been thanked: 1219 times

Re: 1999 V70T5M56 ME7 batch fire or sequential fire of fuel injection

Post by abscate »

Someone with VIDA can tell if that system reports 5 separate injector durations or only 2

It could just be my scanner software, correct, Rick.
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary
User avatar
wizechatmgr
Posts: 1381
Joined: Thu Jan 12, 2017 1:07 pm
Year and Model: 1999 V70 XC AWD 2.4T
Location: Albany, NY area
Has thanked: 24 times
Been thanked: 64 times
Contact:

Re: 1999 V70T5M56 ME7 batch fire or sequential fire of fuel injection

Post by wizechatmgr »

I'll look tomorrow if I'm awake during any "normal" hours - otherwise Monday afternoon.
Wisdom requires knowledge as a prerequisite, but knowledge can be developed due to a lack of wisdom.
In order to learn how to fix something, you must first learn how to break it.
1999 V70 XC AWD - ~193k miles
User avatar
abscate
MVS Moderator
Posts: 22822
Joined: Sun Feb 17, 2013 5:54 pm
Year and Model: 99T5 ,99S70,2005V70
Location: NYC, ALBANY NY
Has thanked: 387 times
Been thanked: 1219 times

Re: 1999 V70T5M56 ME7 batch fire or sequential fire of fuel injection

Post by abscate »

Good, then you stop by and solve my click whoosh problem too

:-)
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary
User avatar
wizechatmgr
Posts: 1381
Joined: Thu Jan 12, 2017 1:07 pm
Year and Model: 1999 V70 XC AWD 2.4T
Location: Albany, NY area
Has thanked: 24 times
Been thanked: 64 times
Contact:

Re: 1999 V70T5M56 ME7 batch fire or sequential fire of fuel injection

Post by wizechatmgr »

You could always pull them all out, place them in glass jars and video tape it - it gives you a good excuse to replace the o-rings :)
Wisdom requires knowledge as a prerequisite, but knowledge can be developed due to a lack of wisdom.
In order to learn how to fix something, you must first learn how to break it.
1999 V70 XC AWD - ~193k miles
User avatar
abscate
MVS Moderator
Posts: 22822
Joined: Sun Feb 17, 2013 5:54 pm
Year and Model: 99T5 ,99S70,2005V70
Location: NYC, ALBANY NY
Has thanked: 387 times
Been thanked: 1219 times

Re: 1999 V70T5M56 ME7 batch fire or sequential fire of fuel injection

Post by abscate »

Well, I can definitely report that M 4.4 does NOT batch fire
Attachments
FFC9B0DF-6786-4EC1-9D4C-E16A78C02665.MOV
(29.92 MiB) Downloaded 4 times
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary
Post Reply
  • Similar Topics
    Replies
    Views
    Last post