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1997 S90/960 B6304S, Misfire on 4&5 only. Topic is solved

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RickHaleParker
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Post by RickHaleParker »

The first question on my mind is why 4&5 only.
Active
1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2017 Ford PIU. 3.5l, Twin Turbo, 365 Hp.
............................
Past
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. ( Killed by a plastic radiator. )
2004 S60R, B8444S TF80 AWD. Yamaha V8 conversion ( I moved, the project did not )
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0. ( Transmission dead after sitting for a winter )
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User avatar
RickHaleParker
Posts: 7195
Joined: 25 May 2015, 14:30
Year and Model: See Signature below.
Location: Kansas
Has thanked: 8 times
Been thanked: 977 times

Post by RickHaleParker »

Sprayed from the down side stream side of the Mass Airflow sensor to throttle body and every other hose and connector I could find on the "tree" with Ether, no leaks detected. I'll get another can with a tube and try getting the under side around 4 & 5 better.
Active
1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2017 Ford PIU. 3.5l, Twin Turbo, 365 Hp.
............................
Past
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. ( Killed by a plastic radiator. )
2004 S60R, B8444S TF80 AWD. Yamaha V8 conversion ( I moved, the project did not )
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0. ( Transmission dead after sitting for a winter )
Top
User avatar
RickHaleParker
Posts: 7195
Joined: 25 May 2015, 14:30
Year and Model: See Signature below.
Location: Kansas
Has thanked: 8 times
Been thanked: 977 times

Post by RickHaleParker »

Took a can of Ether with a tube and hit the underside good. Still no detectable leaks.
Active
1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2017 Ford PIU. 3.5l, Twin Turbo, 365 Hp.
............................
Past
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. ( Killed by a plastic radiator. )
2004 S60R, B8444S TF80 AWD. Yamaha V8 conversion ( I moved, the project did not )
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0. ( Transmission dead after sitting for a winter )
Top
User avatar
RickHaleParker
Posts: 7195
Joined: 25 May 2015, 14:30
Year and Model: See Signature below.
Location: Kansas
Has thanked: 8 times
Been thanked: 977 times

Post by RickHaleParker »

Previous owner got the coil pack wiring harness switched on 4 & 5. Corrected, problem solved.
Active
1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2017 Ford PIU. 3.5l, Twin Turbo, 365 Hp.
............................
Past
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. ( Killed by a plastic radiator. )
2004 S60R, B8444S TF80 AWD. Yamaha V8 conversion ( I moved, the project did not )
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0. ( Transmission dead after sitting for a winter )
Top
User avatar
RickHaleParker
Posts: 7195
Joined: 25 May 2015, 14:30
Year and Model: See Signature below.
Location: Kansas
Has thanked: 8 times
Been thanked: 977 times

Post by RickHaleParker »

Recommendation: Before discontinuing the harness from the coil packs, mark the harness connectors 1,2,3,4,5,6. to avoid making the same mistake.
Active
1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2017 Ford PIU. 3.5l, Twin Turbo, 365 Hp.
............................
Past
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. ( Killed by a plastic radiator. )
2004 S60R, B8444S TF80 AWD. Yamaha V8 conversion ( I moved, the project did not )
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0. ( Transmission dead after sitting for a winter )
Top
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