Will qxba engine fit galaxy that's got qxwa engine 2.0tdci and what would need to be done for it to run and work thanks 

Or it could be engine qxwb 

Hello James, your engine broke and you found replacement a bit different model? It is risky...

I spoke for you with my friend Chat GPT... and here it is answer. I hope it does not break any forum rules... Take is as just an opinion, friend Chat can be wrong.......

The short answer: No, a QXBA engine will not directly fit in a Galaxy built for the QXWA engine, because they come from different Ford engine families and have various differences in mounting, electronics, and ancillaries.

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🔧 Background on the engines

• QXWA (and QXWB):
  • 2.0 TDCi Duratorq-DW diesel
  • Used in second-generation Galaxy and S‑Max (2006–2015) garage.wiki+14mymotorlist.com+14enginecrux.com+14
  • Features common-rail fuel system, VGT turbo, cast‑iron block, belt + chain timing
• QXBA:
  • Also a 2.0 TDCi variant (103 kW/140 hp) used in Mondeo MK4 and early Galaxy/S‑Max (approx. 2007–2010) de.mymotorlist.comproxyparts.com+3ebay.co.uk+3talkford.com+3

Both are from the Duratorq family, but they are different sub-series—QXWA is DW10, QXBA is part of the earlier/parallel DW10 lineup.

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⚠️ Why a direct swap won’t work plug-and-play

1. Physical differences:
   • Mounting brackets, sensor positions, turbo configuration, ancillary attachments likely differ fordownersclub.com+15talkford.com+15fair-motors.com+15.
2. Electronics/MECU:
   • Wiring harness, connectors, ECU tunes (injectors/turbo settings) vary between engine codes.
3. Transmission/Drivetrain fitment:
   • Gearbox bellhousing alignment is engine‑code specific.
4. Ancillary compatibility:
   • Differences in fuel rails, exhaust manifolds and intercooler connections.

Unless you plan a full fabrication job—including custom mounts, harness adaptation, ECU reprogramming, and transmission modular swap—this isn’t a simple bolt-in swap.

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✅ What can fit

• QXWA, QXWB, and QXWC engines from same generation Galaxies/S‑Max (2006–2015) are fully interchangeable fordownersclub.com+1fordownersclub.com+1ebay.co.uk+5mymotorlist.com+5de.mymotorlist.com+5.
• QXBA is only directly compatible with vehicles originally equipped with QXBA (e.g., earlier Mondeo, MK3 Galaxy setups).

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🛠️ If you're determined to swap QXBA into a QXWA setup

You’d need:

• Custom engine mounts
• Matched gearbox (or adapter plate)
• Full loom and ECU swaps or reprogramming
• Matching turbo, intake/exhaust systems, sensors
• Skilled fabricator and tuner—be prepared for major time and expensevv

Thanks but I'm now looking at another option before I engine swap.a guy walked passed me and commented about fuel been my problem I said no it's getting fuel now we changed a diesel pump he asked if I coded it as some need coded I said no it's getting fuel to the injectors so anyway we got talking and I turned it over and he said I know what's wrong it's got blow back from the intake and in he's opinion he said someone tried replacing a cambelt and the timing is 180 out and thinks if the timing is set correctly it will start he says he was mechanic for 30 year.so my issue now is how to set the timing 

sounds like challenge to do proper diagnostics. you describe complicated changes and there definitely is needed a good mechanic.... good luck...

We got a mondeo engine and put that in qxba engine it now starts and drives

There's an issue with a plug can't figure out were the hell it goes anyone know thanks 

If everything works just blank off the end and tuck it out of the way.

The airbag light is on and the horn don't work.but don't think it reach the horn.but it starts and drives 

23 hours ago, jamesymc216 said:

There's an issue with a plug can't figure out were the hell it goes

Crash sensor ?

located on the front cross member or just behind the front bumper on most models of that era.