I have a LS swap in my hatch and I have a few engine codes. Can anyone tell me what codes these are and how to fix them.

Engine Codes:

P1508 Idle Air Control Valve (IACV) Circuit Malfunction,

P0450 (can't find),

P0453 Fuel Tank Pressure (FTP) Sensor Circuit High Voltage,

P1660 A/T-FI Data Line Failure/TCM - ECM Halt,

P0118 Engine Coolant Temperature (ECT) Sensor Circuit High Input


Modified by civictyper99 at 7:53 PM 5/19/2004

 

sticky on top of page.

 

I really need to know how to fix them

 

I'm not sure what year yours is, if it even matters. But I got this out of my Helms for my '98.

P1508: Idle Air Control Valve Circuit Failure

P0450: *not shown*

P0453: Fuel Tank Pressure Sensor Circuit High Input

P1660: A/T Fl Data Line Failure

P0118: Engine Coolant Temperature Circuit High Input


I hope that helped. and can anyone with an OBD1 Helms check what code 81 is and PM me? It's not listed in mine... TIA

 

it is a 98 ls motor in my car