Question about Subaru Impreza WRX STi

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Just wondering where the air flow temp sensor is on a 99 wrx thanks

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  • Subaru Master
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At or near the air cleaner

Posted on Jun 23, 2009

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I need to know which 2 wires are the IAT wires on my air flow sensor/99 Mazda b2500


None of those , those are just the mass air flow sensor . If it had IAT sensor too , it would have 6 wires not four . intake air temp. sensor has gray wire and a gray with red stripe wire .

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Why have i lost power after installing a K&N pod filter on my 2008 subaru wrx imprezza


This new filter has probably affected the MAP/MASF sensor because the air flow has been altered . The word performance will be the clue so you may have to find a speed shop with a chassis dyno and have the chip remapped to the filter.

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Why does my pontiac torrent overheat when ac is on


sensors......Water temp sensor, air flow temp sensor, MAP sensor, Idle speed control solenoid, throttle position sensor, O2 sensor.........
Engaging AC draws on power from your motor, resulting in the ECU having to compensate to keep revs stable. Increased revs result in increased air flow, water flow, fuel flow & exhaust emissions.
Check belts for your AC pump first, as the same belt may drive your water pump. If it slips under load when the AC is on, ..................... Say no more. Next replace Water temp sensor. No luck..... ISC solenoid....
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Mar 22, 2017 | Pontiac Torrent Cars & Trucks

1 Answer

Wondering why my MAF is making my car temp fluctuate


well code P0345 has nothing to do with the mass air flow sensor it stands for Camshaft Position Sensor A- Bank 2 Circuit Malfunction

Nov 20, 2012 | 2005 Nissan 350Z

1 Answer

Please i want to know my subaru impreza 2006,s diagnosis code numbers


Here is a list of Subaru diagnosis codes. If these are not what you are coming up with let me know the numbers you are getting and I will look them up on my genisys scanner to further assist you.
1111 No codes stored
11 Crankshaft position sensor (Don't confuse with above, usually when the crankshaft sensor if dodgy the thing won't start anyway)
12 Starter switch faulty
13 Camshaft position sensor
14 Injector no.1
15 Injector no.2
16 Injector no.3
17 Injector No.4
21 Engine temp sensor
22 Knock sensor
23 Mass air flow sensor
24 Idle air control sensor (usually accompanied by running too fast/slow)
31 Throttle position sensor
32 O2 sensor
33 Vehicle speed sensor
35 Emissions canister purge valve
38 Torque control signal (Automatics)
42 Closed throttle position
44 Turbo wastegate regulator malfunction
45 MAP sensor
49 CO adjustment resistor for older cars not fitted with cats
51 Neutral switch (Manual gearbox)

Feb 08, 2011 | 2007 Subaru Impreza WRX STI Limited Sedan

1 Answer

99 Eclipse 2.4 cid idles erratically and eventually stalls. Unplug the air flow meter and idle quality gets much better and does not stall. Does this mean I have a defective air flow meter? Engine codes...


couple of possible problems

first thing i would check is to make sure air intake hose between Mass air flow sensor and intake doesn't have any cracks holes make sure clamps are tight

secondly check for vacuum leaks carb cleaner works great for this spray around intake gaskets throttle body fuel injectors vacuum lines when spraying u notice change in idle (if idle picks up or stubles) that where your problem is example you spray around intake gasket and idle picks up you have bad intake gasket

third thing is to try and clean the mass air flow sensor they make special cleaner for this (u can use carb cleaner for this but it can leave residue on sensor and damage it so it not recomended)

my best guess for you with all three o codes is you have a vacuum leak somewhere

Nov 13, 2010 | Mitsubishi Eclipse Spyder Cars & Trucks

1 Answer

Runs rich very strong exhaust.replaced plugs 02 sensor. wondering if its the mass air flow sensor.


have you checked the air filter - a partially clogged air filter would make it run too rich. Also it's 15 year old car, check all the connectors and wires under the bonnet for security and cleanliness - dont suspect anything till you know the wiring is good.
Air flow sensor is highly likely - you're right to suspect it... but it could be a faulty temp sensor or even a faulty ECU.

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2 Answers

99 OLDS ALERO 2.4 IDLING PROBLEM


intake manifold has a vacum leak or other vacum leak hose etc.

Dec 03, 2008 | 1999 Oldsmobile Alero

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