Hard start

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02-20-2011, 02:53 PM

Ecitydan

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Join Date: Feb 2011

Location: Ballston Lake

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Year: 1992

Model: Cherokee

Engine: 4.0

Hard start

My 92 Cherokee wont idle when I first start it (it stalls) have to give it gas for a few minutes then when it warms up no more stalling. I am getting codes 13 and 14 sating that the map sensor is the culprit.Well i replaced the iac the tps and the map sensor as well as all the vacuum lines and still have this problem..Can anyone help me.

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02-20-2011, 04:08 PM

freegdr

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Year: 1989 xj sport 2dr

Model: Cherokee

Engine: 12 hole bosch Injectors

o2 sensor maybe?

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02-20-2011, 06:41 PM

tjwalker

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Year: 1999

Model: Cherokee

Engine: 4.0

If you are still setting fresh codes for the map sensor, then that is the circuit that you "must" concentrate on.

Believe what the OBD system is telling you here.

There is more to the MAP sensor circuit than the sensor itself.

Just because you replaced the vacuum line doesn't mean that the vacuum source feeding it is good. You must verify good vacuum.

The connector and wiring are also still in play.

Check em all.........