Multiple codes
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1st Gear
Joined: Aug 2022
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Multiple codes
Hi everyone this is my first post, so I really look forward to some feed back.
In the last couple moths I have replaced the cats, all 4 o2 sensors the plugs several times , solid state distributor, all injectors and injector harness, EGR valve, and lastly the CHT.
Oh and the MAF sensor as well.
It runs so very tough it barely starts moving when in gear it shakes so much and also doesn't reach speed at all.
Codes showing up are: 201, 202, 203, 300, 301, 302, 303, 304, 2195.
Any one have thoughts?
This is a 2006 4.2
In the last couple moths I have replaced the cats, all 4 o2 sensors the plugs several times , solid state distributor, all injectors and injector harness, EGR valve, and lastly the CHT.
Oh and the MAF sensor as well.
It runs so very tough it barely starts moving when in gear it shakes so much and also doesn't reach speed at all.
Codes showing up are: 201, 202, 203, 300, 301, 302, 303, 304, 2195.
Any one have thoughts?
This is a 2006 4.2
Last edited by pennerg; Aug 7, 2022 at 03:54 PM.
Fleet Mechanic
Joined: Apr 2016
Posts: 1,653
Likes: 193
Since you have open injectors circuits ,you need to see if the 12vdc is standing on injectors 1thru 4 . With key on .; The injectors are pulsed by the pcm Applying ground and removing it . You need to use a noid light to see the pulse. Or your wires to injectors have grounded out or been severed by rodents . Of course your drivers to injectors could have failed in pcm but its more likely a wiring problem .All connectors on injectors /cops should be locking on .
Checking your standing 12vdc positive is a good check and it jumpers around from injector to injector . Check for blue corrosion. I might believe 1 or 2 open injectors but 3or 4 is highly unlikely .
Injectors are pricey but I believe 100k miles is enough duty cycle.
I just helped a guy test his injectors and clean them , we used some clip jumpers, a 12vdc battery , rigged a connection to inject carb cleaner in top of injector . I pulsed the spray can while he pulsed the 12vdc to the injector into a mason jar so we could see the spray . Be careful don't get the electric spark near the jar or boom .-boom .
Checking your standing 12vdc positive is a good check and it jumpers around from injector to injector . Check for blue corrosion. I might believe 1 or 2 open injectors but 3or 4 is highly unlikely .
Injectors are pricey but I believe 100k miles is enough duty cycle.
I just helped a guy test his injectors and clean them , we used some clip jumpers, a 12vdc battery , rigged a connection to inject carb cleaner in top of injector . I pulsed the spray can while he pulsed the 12vdc to the injector into a mason jar so we could see the spray . Be careful don't get the electric spark near the jar or boom .-boom .
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