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How does a non EGR engine, intake manifold, and ECU give EGR code?


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so the car had an ej22 engine and ran with no codes.

you replaced the block and head gaskets and now you have an EGR code.

 

so the intake does not have EGR on it,

you did not have to disconnect the EGR pipe from the head when you pulled the intake.

i would really like to know (and GG would too,)

how there was no EGR code before you replaced the block.

but whatever.

 

check the vac lines going the the passenger strut tower.

there are a couple of small devices over there

and those vac lines are easy to miss on the intake end.

and they will throw a code, EGR i think, but not sure.

any way maybe that is the problem, not the lack of EGR on the driver side.

or something else like that

.

Edited by johnceggleston
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  • 3 weeks later...

I would have to guess that the original engine had EGR, someone replaced the engine with a non EGR, and the person who did the swap wired in a resistor to keep the ECU happy, then hid it in the wire loom somewhere, and the resistor finally went bad.

 

A 97 EJ22 paired with an automatic would likely have had EGR.

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