so i installed my skunk2 intake manifold with teg92, right now its working fine the car idles perfect and drives perfect but i got a check engine light. I just jumped it to see what codes i got and I got

codes 10 (IAT Sensor (Intake Air Temperature) defective circuit or unplugged / defective sensor)

code 14 (IAC Valve (Idle Air Control) defective circuit or unplugged / defective sensor)

does anyone know how i can fix these problems so that my cel light goes away?


If i switch these two sensors the car idles funny by reving to 2500 and dropping down to 1000 rpm and it'll do this till it warms up, then it'll idle fine or another thing it'll do is just idle at 1500 but its a wierd idle(very jumpy at 1500) but after awhile this way ill still get the check engine light ^ code 14.

 

What do you mean buy "switch these two sensors"? :huh:

Here's the diagnostic procedure from the Helms manual:

1: Reset the ECU and start the engine again.
1a) Does CEL 014 re-log?
(NO:Check wiring at IAT sensor/ IAC valve)
(YES: Continue)

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2: Check for an open in the IGP1 wire.
2a) Turn Ignition OFF
2b) Disconnect IAC valve connector
2c) Turn Ignition ON (II)
2d) Measure voltage between body ground and IACV 2P connector terminal #2
(IF NO VOLTAGE, repair wiring between IAC Valve and PGM-FI main relay.)
(IF HOT, continue)

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3: Check for an open or short in the IACV line:
3a) Turn the Ignition OFF and reconnect the IAC valve connector.
3b) Disconnect the ECM connector A (32P)
3c) Turn the Ingnition ON (II)
3d) Measure voltage between body ground and ECM connector terminal A12.
(IF NO VOLTAGE, repair wiring between ECM and and IACV valve)
(IF HOT, continue.)

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4: Check the IAC Valve function:
4a) Momentarily connect ECM connectors A12 and A10 several times with a jumper wire.
4b) Does the IAC valve "click"
(IF NO CLICK IS HEARD: Replace the IAC valve.)
(IF IACV VALVE CLICKS: Substitute known-good ECM and recheck. If code does not re-log, replace original ECM.)

 

Might want to try cleaning your IACV maybe we got it dirty when we took it off. Just a suggestion.

 

i have the mainfold, and i have no cels, so either u wired somethign up wrong, or your sensors are messed up and need cleaning

 

:werd:

Good suggestion! If that doesn't work Danny check to see if the IAC valve is functioning.

 

yeah, i guess doug replaced iacv? hopefully its just dirty

 

Here's some possible causes for code 14.

-From the Integra service manual

IAC valve mechanical malfunction
Fast idle thermo valve malfunction (A/T)
Throttle body clogged port, improper adjustment
Intake manifold, gasket leakage
Intake air hose loose, leakage
Vacuum hoses leakage
ECT sensor incorrect output
Throttle position sensor incorrect output

 

thanks will

 

the IACV didnt look new when I took it off

 

oh then maybe it isn't, derek told me doug replaced it but oh well...i guess i just gotta try cleaning it. I fixed where the throttle cable sits too so now i can have my front strut bar on