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ECU: Automatic vs Manuel ECU

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

shaker_chi
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Year and Model: 94 850, 98 S70T5 M
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ECU: Automatic vs Manuel ECU

Post by shaker_chi » Mon Aug 13, 2018 8:56 pm

I have a 98 S70 T5 5 speed and would like to dabble with the ecu now that the software for the motronic 4.4 is free. With that, I'm having a hard time finding an ecu with numbers that match mine. Would another ecu from an automatic 98 S70 T5 work or even from an 850? Any help would be greatly appreciated.

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erikv11
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Re: ECU: Automatic vs Manuel ECU

Post by erikv11 » Mon Aug 13, 2018 9:06 pm

Any motronic 4.4 ECU will work, manual or automatic. Look for a 97 850 GLT (the LPT), any 98 turbo (LPT or HPT).

The 97 and earlier HPT were motronic 4.3.
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 285k
'06 S60 R, 165k
'99 Camry V6 :shock: 125k
gone: '96 NA 850 210k, '98 NA V70 182k

shaker_chi
Posts: 400
Joined: Mon Jun 29, 2009 2:17 pm
Year and Model: 94 850, 98 S70T5 M
Location: Chicago
Has thanked: 3 times
Been thanked: 3 times
Spain
shaker_chi

Re: ECU: Automatic vs Manuel ECU

Post by shaker_chi » Mon Aug 13, 2018 9:06 pm

Thanks Erik. I found one from an automatic s70 T5 on craigslist for $50. Didn't know if it would work or not though.

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