Just changed the back box on MY94 wagon, topped up th oil and it now runs like a bag of nails, no response below 3.5 4k revs but seems ok up to the red line.

It feels like its misfiring at low revs, lots of jerking around!

I changed the plugs, clutch and did an oil change at the weekend and it was running fine, i might have over filled the oil a little could this be the problem? or should i be looking at the back box or plugs???

 

ok, just checked the error codes on ecu

45 and 23, Presure Sensor? and MAF

Could this all be down to the back box change?

 

is the oil dipstick in place propperly?

 

yes, wont even run now!!