I've had this car in a shop since I bought it. It bogs when internment bog when it accelerates.It had a code po175 first time,replaced co2 at the cat.Ran ok for a while.then sat over night.Light can back on with a p0172.Put a Mass air flow sensor on .the car start running real Bad,Put the old sensor back on started running ok.Drove it 25 miles ran like a new car.Shut it off and sat for 3 hrs,went to start it lite back.Any help would be appreciated.I may have to take it to a dealer.I have put egr valve,replaced intake gasket,a c02 sensor,new plugs,air duck,rivit,fuel filter.

 

These cars need some "learning time" after intake part replacement. And it can, unfortunately, be a couple of days.

 

Just wondering.. would the car be more open to "learning" if the battery was disconnected for a while? Then it doesn't have to unlearn it's bad habits...

 

"rivit" - please explain

 

I don't know what a rivit is that was on the bill.This moring it had a code of P103 onit but is running fine

 

TO help it learn, try a throttle reset, easy to do and no cost. Woody

 

How do you do athrottle reset?I am new to a crossfire.

 

Fine. Do that. Just make sure it's a Mercedes Dealer because only rarely will you encounter anyone at a Chrysler dealership that knows ANYTHING about these cars.

To do a throttle reset:

Get in the car.
Turn the key to "ON" but don't start the car, press pedal to the floor and hold it there for over 5 seconds.
Keeping the pedal to the floor, turn the key off. Now, you can release the pedal.
Sit there for at least two minutes without starting the car or turning the key on.

That should do it.

 

Thanks I will try that tomorrow. i disconnected the battery for 2 hrs but check lite came back on

 

Rivet? Something riveted? I know that when I leave a dealer I feel I've been screwed.

 

Ribit..Rivit.. figure by your avatar he's speaking your language!

You basically don't need to worry about a throttle reset now.. disconnecting the battery took care of it for you.
CEL is on.. OBDII scanner? get the code and lets see what it's reading now..

And just doing a google search on the P0175 code you get these results... might be worth looking over on the car..




Possible solutions include:

• Inspect all vacuum and PCV hoses, replace if necessary
• Clean the MAF sensor. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling
• Inspect fuel lines for cracks, leaks, or pinches
• Check the fuel pressure at the fuel rail
• Check the fuel injectors, they may be dirty. Use fuel injector cleaner or get them professionally cleaned/replaced.
• Check for an exhaust leak before the first oxygen sensor (this is unlikely to cause the problem, but it is possible)

I've had VERY good results with the Chevron Injector Cleaner... about 8 bucks a shot but works great!

 

OBDII would be nice, but...
Any guy trying to work on his own car should at least have an ULTRAGAUGE

 

Salesmen.. whatta ya gonna say.. LOL.

OBDII will get you in the ball park..

Based on the google search.. and the "bogs"... I'm thinking fuel rail pressure check would be in order if you haven't had it done yet..

 

Odd, you should make a "salesman" remark... you'd never guess where I have been these past weeks.
Anyway, hold the fort down, I'm going to be kinda scarce around here for some time to come.

 

Had fuel rails off and injectors checked

 

I read you were neck deep in alligators lately.. But let me connect some dots.. "salesman".. nuclear plant.. Iran strike at drone.. hope you aren't sneaking over to the dark side..

 

I tryed disconnecting battery lite back on.Had the code cleared out,Drove it for a while turn it off an cel lite came back on with codep103 =Mrmiata;707834]I read you were neck deep in alligators lately.. But let me connect som e dots.. "salesman".. nuclear plant.. Iran strike at drone.. hope you aren't sneaking over to the dark side.. [/QUOTE]

 

OBD II Code P0103

Mass or Volume Air Flow Circuit High Input

OBD II Fault Code

• OBD II P0103

Fault Code Definition
The Mass Airflow Sensor (MAF) measures the amount of air entering the engine and the Engine Control Module (ECM) uses the information to determine the proper amount of fuel quantity and ignition timing. The P0103 trouble code is set when the Powertrain Control Module detects a high voltage output from the MAF Sensor.
Symptoms

• Check Engine Light will illuminate
• In many cases, no abnormal symptoms may be noticed
• In some cases, the vehicle may get poor fuel mileage

Common Problems That Trigger the P0103 Code

• The MAF Sensor is unplugged or the wiring is damaged
• Loose or corroded electrical terminals in the MAF Sensor circuit
• Faulty MAF Sensor

Common Misdiagnoses

• MAF Sensor Replaced when the wiring is bad
• Connector for the Mass Air Meter is defective

 

Could rich fuel cause cat. to go bad?

 

Just ran a pin test to check all the wiring.Came to conclusion it is mass air flow bad order a new on .See what happens,still got code P0103