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Flywheel installation, Volvo 850

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
Seany27
Posts: 42
Joined: Thu Dec 14, 2017 12:55 am
Year and Model: 1995 Volvo 850
Location: Desertmartin
Has thanked: 3 times
Great Britain

Re: Flywheel installation, Volvo 850

Post by Seany27 » Mon Jan 22, 2018 9:39 am

I did get 2 codes on port a2, 535 turbo regulator valve fault, if that's boost controller, I've put a manual one in. And 514, engine cooling fan faulty or at half speed, I know both of my fans worked, everything was stored neatly



Seany27
Posts: 42
Joined: Thu Dec 14, 2017 12:55 am
Year and Model: 1995 Volvo 850
Location: Desertmartin
Has thanked: 3 times
Great Britain

Re: Flywheel installation, Volvo 850

Post by Seany27 » Tue Jan 23, 2018 6:11 am

I've just took all the auto stuff off one my harnesses, saw it was sharing positive and ground wires,, let's see if this makes a difference



Ozark Lee
MVS Moderator
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Joined: Thu Sep 07, 2006 8:24 am
Year and Model: Many Volvos
Location: USA Midwest
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United States of America

Re: Flywheel installation, Volvo 850

Post by Ozark Lee » Wed Jan 24, 2018 10:43 am

Does the IAC valve buzz when you put the key in position II?

The master fuel system relay, which is mounted on the radiator shroud, provides voltage for the injectors and also the IAC valve. If the IAC valve isn't buzzing it is a dead giveaway.

Usually the relay is OK but the way the wiring harness plugs in it is unprotected and the harness and the connector can be problematic.

...Lee


'94 850 N/A 5 speed
'96 Platinum Edition Turbo
'99 V70XC - Nautic Blue
Previous:
1999 V70XC - RIP - Wrecked Parts Car.
1998 S70 T5
1996 850 N/A
1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe

Seany27
Posts: 42
Joined: Thu Dec 14, 2017 12:55 am
Year and Model: 1995 Volvo 850
Location: Desertmartin
Has thanked: 3 times
Great Britain

Re: Flywheel installation, Volvo 850

Post by Seany27 » Wed Jan 24, 2018 10:46 am

None of them buzz, got 3, I know 1 works/ worked, more problems now as I've stripped the auto stuff off the harness, and now doesn't spark. Maybe one day things will go right



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