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sprinkles08, Chrysler/Dodge/Jeep master tech
Category: Dodge
Satisfied Customers: 21432
Experience:  ASE Master and Advanced Certified, Chrysler/Dodge/Jeep Master Certified, Trans and Hybrid Specialist
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Comp shows 0202 open #2 inj circuit idles perfect revs up to

Customer Question

comp shows 0202 open #2 inj circuit idles perfect revs up to 4000 and acts like its hitting the rev limiter
JA: How many miles are on the car? What size is the engine?
Customer: 131000
JA: What year is your 4000?
Customer: 2004 3.7
JA: Are you fixing your 4000 yourself? What have you tried so far?
Customer: installed new injectors day before yesterday next morning ran fine,but no alt output came back found alt plug out now have volts but 0202 came back and wont rev like before
JA: Anything else you want the mechanic to know before I connect you?
Customer: no other codes fuel press is right
Submitted: 1 month ago.
Category: Dodge
Expert:  sprinkles08 replied 1 month ago.

Hello and welcome to JustAnswer!

P0202 sets when the powertrain control module sees an unexpected circuit resistance on the number 2 injector control circuit. This could be the injector itself, loss of ASD voltage to it, an open circuit, high resistance or short to power or ground on the driver circuit. The problem can also be a failed driver in the PCM.

The first thing that should be done is compare the resistance of the number 2 injector to others. If ok then the wiring needs to be tested to determine why the code is setting.

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