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2003 V70 wiring loom

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive P2 platform cars sold as model years 2001-2007 (North American market year designations).

2001 - 2007 V70
2001 - 2004 V70 XC (Cross Country)
2004 - 2007 XC70 (Cross Country)
2001 - 2009 S60
2003 - 2007 S60 R
2004 - 2007 V70 R
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RickHaleParker
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Re: 2003 V70 wiring loom

Post by RickHaleParker »

B5244T3 83mm pistons, 90mm stroke, compression ratio 9.0:1, LPT.
B5234T3 81mm pistons, 90mm stroke, compression ratio 8.5:1, HPT.

Without knowing what the B5234T3 came out of, I would transfer the 2.4l wiring harness to the 2.3l to be sure it is compatible with the rest of the car.

The B5234T3 is a T5 engine, It will run with the LPT and the 2.4L software. Just don't expect it to run like a T5. Use the LPT unless you willing to get the ECM remapped for the HPT or hire Yagger to flash the ECM with the software from a 2003 V70 T5.

With the lower displacement, lower compression, 2.4 software, LPT, the 2.3 will have a little less power the the 2.4. If you just want something for a daily driver, it be OK. One advantage of this setup would be you can run lower octane petrol without knocking. You might even get better fuel economy then you did with the 2.4 because the ECM can run the engine with more timing advance then the 2.4 on the same grade of petrol.
yagger wrote: ↑28 Mar 2020, 21:14
Last edited by RickHaleParker on 05 Apr 2020, 22:21, edited 1 time in total.
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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. Yamaha V8 conversion
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0.
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kiwivolvo
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Year and Model: 2003 v70
Location: New Zealand

Post by kiwivolvo »

would you recommend the ecu and turbo from the 2.3?
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RickHaleParker
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Post by RickHaleParker »

kiwivolvo wrote: ↑05 Apr 2020, 22:13 would you recommend the ecu and turbo from the 2.3?
I would not at this time because I do not know what the 2.3 came out of. The 2.3 ECM could be a Bosch Motronic 4.4 or a Bosch ME7. On top of that, a ME7 from another car may need to be married to the CEM. This is a question for Yagger or Doublebug to answer.

You are down to three questions:
1. Is the 2.3 ECM Motronic 4.4 or ME7?
2. Is a ME7 plug and play?
3. If not what will Yagger charge you to synchronize the software?
⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙
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. Yamaha V8 conversion
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0.
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kiwivolvo
Posts: 16
Joined: 28 March 2020
Year and Model: 2003 v70
Location: New Zealand

Post by kiwivolvo »

fitted motor, plugged in all wires, cranks over but no spark or communication on my snap on scanner
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kiwivolvo
Posts: 16
Joined: 28 March 2020
Year and Model: 2003 v70
Location: New Zealand

Post by kiwivolvo »

fitted motor, plugged in all wires, cranks over but no spark or communication on my snap on scanner
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RickHaleParker
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Post by RickHaleParker »

You are not communicating effectively. For example:
1. Which harness did you use?
2. Which ECM did you use?
3. Information on the donor ECM?
4. What did the 2.3 come out of?
⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙⸙
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. Yamaha V8 conversion
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0.
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SuperHerman
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Post by SuperHerman »

Disconnect battery. Check all your connections. Did you play with any of the modules? I forget their names, but the ones many remove in the black box on passenger side. A number of people have had issues with these not being seated correctly and experiencing your problems.

Communication errors are most likely an improper/incomplete connection. Recheck all work.
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kiwivolvo
Posts: 16
Joined: 28 March 2020
Year and Model: 2003 v70
Location: New Zealand

Post by kiwivolvo »

factory harness from my v70, factory ecm, dont know what the motor came out of
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kiwivolvo
Posts: 16
Joined: 28 March 2020
Year and Model: 2003 v70
Location: New Zealand

Post by kiwivolvo »

havnt removed anything
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kiwivolvo
Posts: 16
Joined: 28 March 2020
Year and Model: 2003 v70
Location: New Zealand

Post by kiwivolvo »

i have communication will all modules except engine and trans
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