All following on from my pervious engines demise popping a con rod whilst in the motorway , I now have my new engine fitted. The only problem it won't fire up, turns over ok. We did have a problem last week with the battery. Now, this as my mechanic told me the second battery he has found in as many weeks. With my car being stood for so long I had to take the battery out of the car and place on charge. Battery fitted Thursday last week , had been on charge for 4 days. Try and start the car and blue the 120a fuse and the fuses to the clocks etc and abs pump buzzing , weird until he checked the battery , it had reversed its polarity !!!!!. Have now put new battery in and won't fire. Have checked the coil packs power going to them but not sparking. Have tried the other set of coil packs I have and still no spark. Do you think I may have damaged the ecu ? Is there anything else to check , my mechanic is scratching his head a bit.
If it is the ecu does anybody have one I can try to eliminate the problem ?