PO 110, PO100, P1600, P0120, P0115

Please clarify what is a noah gasket and what year and model. If you use testimonial it will show up in my email and we can take it from there, if you want someone else just wait. Take care

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P0115 Engine Coolant Temperature Circuit Malfunction

www.obd-codes.com/p0115
Detailed information on troubleshooting and repairing a p0115 automotive trouble codewhich refers to a malfunction in the engine coolant temperature circuit.

Theres a vacuum line off under the throttle body when you removed the intake manifold it probably got pulled off also its very hard to see

P0110 DTC - IAT Circuit Malfunction

P0115 DTC - Engine Coolant Temperature Circuit Malfunction

P0120 DTC - TPS A Circuit Malfunction

P0195 DTC - Engine Oil Temperature Sensor Malfunction

Hope this helps to identifiy.

Ouch. thats a tough one. Your fault code is for a small EVAP leak which is notoriously very hard to find. I would follow the most likely causes from the CarMD report. They are generally very accurate and based on input from technicians like myself. Remove your gas cap and inspect the seal around the cap. A leak as small as 0.02 inches will trigger the code you are getting. Literally some dust or debris could cause this. I would inspect the seal for cuts/tears and clean it. Replace the gas cap is the cheapest thing to try first and the likely culprit here. Check CarMD site for recalls and TSB's regarding EVAP leak as well. Good luck.

Welcome to FIxYa.com
Description of codes are:
P01600 - Serial cable malfunction-- check connection,
Po115-Coolant sensor-indicates a open or short-circuit in the engine coolant temperature sensor circuit.

The P0401 code is Insufficient Flow Exhaust Gas Recirculation System.

The code is set when the engien computer detects less than the requested amount of EGR flow when the engine is hot and is under load.

What usually sets the code is an inoperative EGR valve, or a carbon clogged port under the EGR valve.

On your engine, the EGR valve is vacuum operated, and there is a little computer-controlled EGR solenodi valve in the vacuum hose that detemines how much vacuum the EGR valve gets. If this solenoid is bad, or there is a vacuum leak in one of the hoses, the EGR valve won't open when it should setting the code.

Since the dealer already cleaned the EGR valve tube, I would suspect your problem is likely due to a bad EGR solenoid valve or a leaky vacuum hose to the EGR valve.

Here is the EGR solenoid valve part number and list price:

P/N 3946038750 $40.59

I would clear the codes first and run engine for two min and re-check codes.

Write to me of the findings and we will go from there.

Regards, Lee Davidian

A Four Thumbs up ^^^^ is appreciated for answering your question.

Thank you, Lee Davidian

Hi There! After pulling the code from your CarMD did you plug in your CarMD device into your computer?
CarMD will search through their database with your specific make/model and the error code being generated.

The P0400 has to do with a fault in the EGR (Exhaust Gas recirculation) system. The possible cause is leak or blockage, wiring, EGR Valve or EGR solenoid or the ECM.
P0115 has to do with the ECT (Engine coolant sensor) possible causes for this fault is wiring or the Engine coolant sensor itself or the ECM.
I believe I have the testing for both of these if you need them. Send me your email and I will send you the test procedures if you are familiar with how to use Ohm meter and a vacuum tester.
[email protected]

P0115 - Engine Coolant Temp Sensr - open/short
P1159 - Variable Intake Motor Malfunction

P1191/P1193 Limp Home Valve - Low RPM

First, clean the throttle body and check for anything which might obstruct AIR FLOW to it.

The P1159 is the Variable Intake Motor Malfunction. this motor is either 'OPEN'... or 'CLOSED' position. It is located on/in the intake manifold (plenum) and is only opened when cruising... it is closed at idle. If it sticks 'OPEN' is can cause drivability issues.