Fuel Injector Discrepancy
I recently had a Cylinder 4 Misfire error code (2002 Ranger, 3.0 MFI)... and ended up changing the fuel injector for that cylinder. There are two different fuel injectors available. According to Napa, where i bought it... if the 8th digit of my VIN was a U, it was one injector... if it was a V... it was the other. Well, this just refers to whether you have the regular 3.0 MFI Engine, or the Flex 3.0. I have a U digit, and the regular 3.0 Engine.
Well... the problem is that after i picked put the injector and compared it to the old one i took out... they were different. The new one had a wider diameter intake opening, and wider angle spray nozzle side. And they had a different color molding. We compared it to the other one available, which is supposed to be for the Flex Engine/V Digit... and they were identical. So we opted to put in the identical one to the one that had been in the engine.
Now i'm getting a Cylinder 1 Misfire... and likely need to change out that Injector as well. (I'm assuming I may as well change 1-3 while I'm in there, since all are likely pretty dirty). My question: If those injectors are likewise identical to the ones that are supposed to be for the flex engine... and not my engine... should i go with what the computer says, or go with the identical injector?
(I'm curious to know if either Napa has the parts wrong in their computer, or if someone that had the Ranger before me had changed them and put the wrong ones in)....