When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
So I'm driving home from where I store the car for the winter. First drive of the year. I'm going through an intersection and the light starts to change so I nail it. And as soon as I do everything changed.
I thought I had a cat let go or the mid pipe come partially off. Because it went down on power and had noticeably more drone.
Get home. Ran the codes p0200 with no others. Tore the intake manifold off and checked all the wiring and can't find anything chaffed or pinched.
Put it all back together and cleaned the connections and no change.
And its not intermittent. I have power to all 8 injectors. I know they pulse with a ground signal (which I haven't checked) but I wanted to make sure since positive is easy to check.
If you have a scan tool that can read misfires (P0300) you can see if it is a whole bank or just individual injector circuits that are bad...there are 2 fuel injector/coil pack fuses (1 for each bank) so I would check those fuses and also see if you have spark...all you need to check for injector pulse is a 12 volt test light connected to battery positive while probing the injector striped wire while the injector is unplugged with the engine running or use a noid light
If you have a scan tool that can read misfires (P0300) you can see if it is a whole bank or just individual injector circuits that are bad...there are 2 fuel injector/coil pack fuses (1 for each bank) so I would check those fuses and also see if you have spark...all you need to check for injector pulse is a 12 volt test light connected to battery positive while probing the injector striped wire while the injector is unplugged with the engine running or use a noid light
So fuses are good. I have 12v to all 8 injectors. I need to grab a test light and see if they're switching to ground.
My tuner had a decent idea. He said fire it up and check the primaries with the temp gun. Should be able to find the dead hole. Once I know which one I can narrow down the search. Test for continuity. Etc.
That's one heck of a good looking car! I hope you get it figured out quickly. Did you actually look underneath yet to see if the exhaust is all still hooked up right?
I did the ol temp gun test and had a dead rear pass cylinder. with the injector code it pointed towards wiring or injector. I tossed a 12v LED in the connector and fired it up and it flashed. Swapped the injector with a spare my buddy had and boom, it's back up and running.
Last edited by 2k2wranglerx; Sep 2, 2022 at 01:03 PM.
P0200 question. It hit me sorta hard
