CEL Codes - 2 * MAP Sensor related, Sensor, Wiring, ECU? Options

[erics1one]

Alright the codes that pulled are:

P0105 Manifold Absolute Pressure/Barometric Pressure Circuit Malfunction
P0106 Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem

I'm getting around 12-15mpg and shes sluggish as hell.
Idle VAC is 18-19

I've recently got a new MAP sensor (which was confirmed in working condition), but the CEL was still triggered. The shop says that if it is a good sensor, then it has to be the wiring harness or ECU.

Also, I recently got a replacement header, which had its secondary O2 sensor bung stripped out. So I spliced the primary and secondardy lines and plugged the hole, which I've heard is a common fix when getting a performance header that only has the primary bung. This did not pull any O2 codes, but I wasn't sure if this was dampering my mpg/performance.

Has anyone spliced their O2 wires successfully?
Any help would be hot...thanks.

This post has been edited by erics1one: Apr 18, 2005 - 12:51 PM

[lagos]

why did u buy a new map sensor? u still have the old one?

maby try swaping it back in to see whats up.

from what i know about the o2 sensor, is that only one of them is and o2 and the other one is sometimes a temp sensor. so giving the ecu the same signal would not be a good thing. take the header off and ask a local exhaust shop to put a bung on the for you for the other sensor. it should be really cheap to do.