My 2006 2.4L, 103k, is throwing code P1174. I have searched alot of threads related to this and see it is most likely an injector issue requiring replacement. I am not seeing any other codes such as P0300 as others note, so I don't know what cylinder. I do notice an occasional skip/misfire even though it doesn't throw a P0300. It looks like I will most likely replace all, as I noted somewhere that GM has replaced this part with an upgrade along with an ECM update, so...... I can't seem to find any posts related to the actual process of removal / installation of the injectors. Does anyone know if one exists? BTW - My car is also due for new plugs and will be replaced later this week. Any chance this could be the source of the code vs injector problem? I might be hoping for too simple an answer, but thought I would ask. Thanks for any help you can give!

 

I would try the plugs first. If it clears it up, then great. If not, then you can go the injector route.

 

Thanks for the reply Fireman. Keeping my fingers crossed! I really don't want to get into the injectors if I don't have to.

 

I'll be doing the same shortly. Need to order them first.

 

http://arrc.ebscohost.com/searches?c...trol%2Fgeneral

 

http://arrc.ebscohost.com/searches?c...trol%2Fgeneral

 

http://arrc.ebscohost.com/searches?c...trol%2Fgeneral

 

plugs first the AC Delco's are a good choice

 

alexrckid......

Whatever you are trying to do (from yesterday), is not working. All that is displayed, when clicking the link you provided, is a sign in page asking for I.D. and Password for some website.

Must be important though......you tried and posted 3 times without success.

 

try p/w pl249412345678