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ej22 stumble at exactly 2600 rpm...weird?

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While waiting for fed ex to deliver some parts this morning, I thought I'd ask ...

 

anybody ever heard of this?

 

 

Slight stumble at exactly same rpm.....engine is a 98..tranplanted into my 97 OBW.

 

 

Paul

  • Author

I just picked up genuine Sube Wires other day and am swapping them out tommorow, thought I'd clear codes then....

 

 

I have to change some oil seals, and some idlers, and some pumps.....etc

The point I was working on was that possibly

a sensor

(Maybe the MAP baro sensor.which could show up as an error code)

is causing your problem.

  • Author

Map Baro sensor?? is that on engine or car???

 

 

What does it do?

MAP - Manifold Absolute Pressure

Baro - Barometric pressures

 

If it was not connected or being fed the wrong info

(hose off) it would light the CEL.

 

I just used it as an example of one thing the codes might show.

 

mapbarosensor.jpg

  • Author

Thanks ! So its needs a pure manifold vacuum...I think thats how its hooked up....

 

I will check...the swap last weekend was a 97 2.5 to a 98 2.2 ...not all the vaccumm lines were exactly the same....

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