Car not starting!

[Deathsoul]

Hey guys

okay just to give you information i recently changed the Throttle body as my old one was really dirty all round and also because i had the 'Emission light' on the dashboard. Well after one day of changing the throttle body my car does not start. I drove to my dads place and got in the car to return home and it didn't start.. :/ It makes a noise how a normal car starts and then it cranks!!! we have checked Fuel filter and its all fine, I gave it to the mechanic hoping it should be fixed tomorrow. why has this happened? he said he has connected it to the diagnostics and no errors showed up.

I really need some help out here guys! In so much stress its unbelievable..

 

[Jnsio]

Probably something to do with the throttle body and its choking. Did you get any smoke out of the exhaust when trying to start it?

 

[Deathsoul]

Probably something to do with the throttle body and its choking. Did you get any smoke out of the exhaust when trying to start it?

No mate no smoke, i told the mechanic to put back the Old throttle to see if it starts working. I don't know man, i'm so upset and worried over this situation. As i can't attend university because i need this vehicle. My car had to be towed to the local garage today

 

[MarkpS3]

Pretty sure you can't just swap the throttle body like that. It needs a 'throttle body alignment' (electronically, using computer). Any decent Indy garage should be able to sort that for you!

 

[aqibi2000]

Diesel? Basic rule of thumb, rmeove boost pipe and put hand in to see if the flap is moving correctly to the open position to start the engine.

 

[Retroman]

Modern cars are "fly by wire" which means the accelerator pedal links to the throttle electronically and not by an old fashioned cable. If you remove a "fly by wire" throttle body and manually move the butterfly valve (as you would do during a cleaning process as they can get dirty around their perimeter) then you will confuse the electronics (sensors on accelerator pedal and throttle body) which often needs to be re-synchronised via the manufacturer's diagnostic software.