Check Engine Light Code P1103

[Project2G]

So I put on GReddy style UICP and a GReddy Type S bov and I was boosting the stock psi on my 97 gst. The car is pulling really good but every time I floor it I hit fuel cut? After hitting fuel cut a few time my check engine light came on. My brother hooked up a scan tool and it gave me the code of P1103 and this is the print out I got from alldatapro.com (I have an account). Can you guys give me some feedback on what I should be replacing? From what i hear I should be able to boost 16psi on my t25 with the following mods on my 97 GsT (injen intake, apexi n1 catback, ported exhaust manifold, UICP, GReddy BOV). I put on a MBC and lowered the boost to 10psi so now I don't hit fuel cut but sometimes it spikes to 12psi. I really want to get this fixed before August 11th *track day*. Thanks for any imput.

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[1998gstmaniac]

p1103---Manifold Absolute Pressure (MAP) Sensor Malfunction - High Voltage

visually inspect the map sensor wires and connectors and look for corrosion. if corrosion is found on the wires you may be able to fix it but its not guaranteed. it corosion is found in any of the connectors theyll need to be reaplced. and if no corosion is found. youre gonna need to run a resistance test on your map sensor and if its not in spec. replace it.....

 

[Project2G]

I replaced my wastegate actuator and my problem was solved. Now my check engine light came back on. Code P0141 o2 (Heated Oxygen) Sensor Heater Circuit Malfunction.

 

[blcknspo0ln]

P0141 is o2 sensor bank 1 sensor 2. This is the o2 sensor that is right after your catalytic converter. Aside from the obvious of sensor failure, If you are running an aftermarket cat or no cat at all (straight pipe) this will trigger the CEL.

 

[synthetek]

p1103---Manifold Absolute Pressure (MAP) Sensor Malfunction - High Voltage

P1103 is the waste gate solenoid, we dont have MAP sensors. Do you have a cat on your car? You probaly either need to replace the rear o2 sensor or look into one of the methods of eliminating it. http://www.vfaq.com/mods/O2bypass.html

 

[Project2G]

I'm currently running just a APEXi N1 catback exhaust 2.5inch. I have the 3inch apexi down pipe cat delete but have not put it on the car since I don't have a 3inch exhaust. The 2.5 one was off my RS. Thanks for the help guys.

 

[zippyshoe]

Just wanted to let you know that the faulty rear O2 sensor (after the cat) will not affect your driveability at all - its only used to allow the ECU to monitor the efficiency of your cat.