Problems with Sr

[HaSo240sx]

Ok i have s14 sr motor in my 240 and i was just driving around 2 thousand rpms and my car started hesitating and the the boost would kick in now i know it needs a tune so could it be bc of the air to fuel ratio..and the rpms jump up and down n idle sometimes.

[SidewayZ-s14]

Have you checked the MAF lately?
Have you changed your fuel pump?
Have you checked your IC piping?

You should do some of the basics first so we can narrow it down for you.

[HaSo240sx]

Yea i checked the MAF and nothing im using a walbro fuel pump yea they have no leaks or anithing..

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check spark plugs and iacv

[HaSo240sx]

I just changed the sparkplugs not too long ago and im have to check the iacv....

[jdm213]

I just changed the sparkplugs not too long ago and im have to check the iacv....

check the wires and how about searching next time:ssex: