check engine light
06-11-2009, 06:00 PM
#1
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Posts: 30
check engine light
I have had my CEL light on for a while so I recently purchase the autotap program and these are what I pulled after clearing them numerous times
P0200 Injector Control Circut Voltage
P1222 Injector Control Circut Intermittent
Does anyone know how I might be able to fix/test or know where I can start at
I have checked the injectors and they are all ~13-13.5
oh and here is the stats on the car
97 z28 383 stroked 11.5:1 230/236 .57X lift with 110LSA: stage2 P&P with beehive 918's: 1.6 RR: Hardened Pushrods: 32#inj's: 58mm TB: Delteq: Pace Setter Headers:!Cats !Air !EVAP !EGR: 3" Magnaflow: LCA: LCA relocation B's: UMI torque arm: pro 5.0 connected to a Spec Stage2 spinning Nitto DR's
P0200 Injector Control Circut Voltage
P1222 Injector Control Circut Intermittent
Does anyone know how I might be able to fix/test or know where I can start at
I have checked the injectors and they are all ~13-13.5
oh and here is the stats on the car
97 z28 383 stroked 11.5:1 230/236 .57X lift with 110LSA: stage2 P&P with beehive 918's: 1.6 RR: Hardened Pushrods: 32#inj's: 58mm TB: Delteq: Pace Setter Headers:!Cats !Air !EVAP !EGR: 3" Magnaflow: LCA: LCA relocation B's: UMI torque arm: pro 5.0 connected to a Spec Stage2 spinning Nitto DR's
Last edited by blackFbird_98; 06-11-2009 at 06:02 PM.
06-11-2009, 10:24 PM
#2
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Location: Hell was full so they sent me to NJ
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P0200 is telling you that one of your injector control circuits is not working (= injector not firing). Could be a faulty wire or a faulty injector. Key on, check the pink wire in each injector harness connector for 12V (meter black wire to a healthy engine ground). If you have 12V on all 8 injector connectors, with the harness disconnected measure the resistance across the two pins on the injector. Should be in the range of 12-15ohms. If you pass both those tests, it would indicate the injector is not getting the ground from the PCM that fires it. Get a set of "noid" lights and use them to determine which injector is not firing. Then check continuity of the its ground wire from the PCM to the injector harness connector.
P1222 would appear to be a redundant code.
P1222 would appear to be a redundant code.
06-12-2009, 06:31 PM
#3
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Join Date: Nov 1998
Location: Louisville, KY
Posts: 2,761
My OBDII book says:
P0200 Engine running, the PCM detected a fuel injector current level of less than 4 amps for a period of 5 - 10 seconds.
Oddly enough for the P1222 it says:
PCM detected the wrong voltage potential on any injector drive circuit for under 500ms. PO200 will set if a circuit/component fault is detected.
As Injuneer sugggests. a set of noid lights will most likely come in handy.
P0200 Engine running, the PCM detected a fuel injector current level of less than 4 amps for a period of 5 - 10 seconds.
Oddly enough for the P1222 it says:
PCM detected the wrong voltage potential on any injector drive circuit for under 500ms. PO200 will set if a circuit/component fault is detected.
As Injuneer sugggests. a set of noid lights will most likely come in handy.
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