Bigger injector side effects

[onlyoneromeo]

Ok so my car is now running and my next hurdle is to find out why its smoking and possibly running rich. When i drive it on the highway it smokes when i come to a stop. Its not the typical oil or antifreeze smoke its a little te different. Anyhow today my mechanic tells me thag my injectors are too big and its dumping too much gas and smokand thats and thats why its bogging down and smoking. It has an afm aftermarket fuel rail and he said when he tried to put stock injectors in they wouldnt fit because the hole in the rail was too big.

So my questions are this. Could just putting bigger injectors flood my engine and make it bog down after a quick acceleration? Could it make the car blow smoke after a run on the highway coming in and out of boost? And could it trigger the fuel pressure solenoid p1105 code?


and yes before anyone asks i searched

 

[pauleyman]

Bigger as in physically bigger or bigger as in more flow? You can't bolt in higher flowing injectors without something to control them. The ECU doesn't know they are bigger and base the fuel to inject on the assumption of what they flow. Change that and you have to change what the computer is doing also. If they're just physically bigger/different then no. They won't change anything so long as electrically they are the same etc. Sounds like you need stock injectors and a stock rail.

 

[954g63gst]

yup! i have a stock fuel rail for you. pm me. hes right. or buy ecm link and and pm me for an eprom and be totally satisfied.

 

[2gprpletsi]

Both above are right bigger Injectors =more flow and if your computer doesn't know its getting more its flooding out so either new tune with spring ecu + dsm/ecm link or really pricey tuneable ecu or back to stock ya know?

Eprom* not spring

 

[cl1ckclack]

look into an SAFC. I'm sure it would be fine to compensate for the injectors.

 

[onlyoneromeo]

Would making the car run real rich because of the bigger injectors trigger the" fuel pressure solenoid up" code?

 

[talon2gbuyer]

look into an SAFC. I'm sure it would be fine to compensate for the injectors.

An SAFC would be a good start, but that can only lean out the mix. If you wanted total control over what the ECU is telling the engine to do, you should just spring for the eculink.

 

[duy35]

He has 99 he can always flash his ecu.