2007 Chrysler Sebring won't Rev past 2000 rpm when pedal is to the floor. What could be my problem. Map sensor and connector are new. Also cleaned the throttle body and maf sensor.

How would I check it How would I check it

Codes stated map sensor and throttle body Codes stated map sensor and throttle body

Back pressure test the exhaust system .pull out a O2 sensor an screw in a back pressure gauge , or you could hook up a vacuumn gauge. You mite want to take it to a repair shop an have it done .

watch this .A plugged cat will cause MAP sensor false code .
https://www.youtube.com/watch?v=9TlygJMx... Back pressure test the exhaust system .pull out a O2 sensor an screw in a back pressure gauge , or you could hook up a vacuumn gauge. You mite want to take it to a repair shop an have it done . watch this .A plugged cat will cause MAP sensor false code . https://www.youtube.com/watch?v=9TlygJMxTps

Catalytic plugged how would you check that Catalytic plugged how would you check that

I personally would drop the exhaust header pipes off the exhaust manifolds, then start the engine ... but it would be loud! I personally would drop the exhaust header pipes off the exhaust manifolds, then start the engine ... but it would be loud!

Plus could break header bolts , rusty ! Plus could break header bolts , rusty !

2.7 2.7

Codes stated map sensor and throttle body Codes stated map sensor and throttle body

The map sensor does not sense aerial pictures of roads! MAP stands for "Mainifold Absolute Pressure," which is used for adjusting the air-to-fuel ratio, which will not let the engine run right if the MAP sensor is defective! The throttle body controls the amount of air coming into the engine. The TPS (throttle position sensor) is another control which must be working right ... but they often go intermittent! The map sensor does not sense aerial pictures of roads! MAP stands for "Mainifold Absolute Pressure," which is used for adjusting the air-to-fuel ratio, which will not let the engine run right if the MAP sensor is defective! The throttle body controls the amount of air coming into the engine. The TPS (throttle position sensor) is another control which must be working right ... but they often go intermittent!

Map sensor and connector has been replaced throttle body has been cleaned and so has the maf sensor Map sensor and connector has been replaced throttle body has been cleaned and so has the maf sensor

How did we jump from MAP sensor to MAF sensor? How did we jump from MAP sensor to MAF sensor?

Just cleaning as much as possible Just cleaning as much as possible

So would a bad throttle body cause my problem So would a bad throttle body cause my problem

That seems unlikely to me. The engine runs, but not very high RPM, is that correct? Is it difficult to start, or does it run better without a load on the engine (such as in neutral or park)? That seems unlikely to me. The engine runs, but not very high RPM, is that correct? Is it difficult to start, or does it run better without a load on the engine (such as in neutral or park)?

Car starts easy Car starts easy

Can Rev it to 3 or 4000 a few times then it will not Rev at all with the pedal on the floor Can Rev it to 3 or 4000 a few times then it will not Rev at all with the pedal on the floor

Try removing the air cleaner filter. Is it damp or wet? Will the engine run okay without the filter installed? DON'T drive it like that, at least not very far or long! But the real question is, does the engine run okay without the filter? Try removing the air cleaner filter. Is it damp or wet? Will the engine run okay without the filter installed? DON'T drive it like that, at least not very far or long! But the real question is, does the engine run okay without the filter?

Let me check it Let me check it

No its dry No its dry

It has rpms and then it flatlines this is crazy It has rpms and then it flatlines this is crazy

Only codes we got were for the map sensor and throttle body Only codes we got were for the map sensor and throttle body

The plug to the throttle body was not locked in place so we did that The plug to the throttle body was not locked in place so we did that

Have a new throttle body but waiting to put it on until I have heard all my options Have a new throttle body but waiting to put it on until I have heard all my options

Seems like the 2 codes went away after replacing the map sensor and securing the plug to the throttle body Seems like the 2 codes went away after replacing the map sensor and securing the plug to the throttle body

I would plan on taking that throttle body back for a refund! I would plan on taking that throttle body back for a refund!

I once worked on a Plymouth Breeze that did about the same thing. So, I put a CURRENT METER in series with the electric fuel pump. The fuel pump would start out at some current level, but the longer it ran, the less current it would take ... until it stalled out altogether (which took about 3-5 minutes). The whole time, the fuel pressure was falling ... and falling, until the engine stalled because of lack of fuel pressure! Has anyone CHECKED your fuel pump current draw lately? Power window motors sometimes do the same thing! You could roll them down, but going up, they would go slower and S-L-O-W-E-R until they would stop ... but would go again after cooling off a while! So, being as curious as I am, I analyzed the power window motors, after taking them out. The problem was, when the motor brushes are mostly worn down, the brush pressure exerted by the springs falls of to near zero, as the brushes get warm! It's the same story with electric fuel pump[s! I once worked on a Plymouth Breeze that did about the same thing. So, I put a CURRENT METER in series with the electric fuel pump. The fuel pump would start out at some current level, but the longer it ran, the less current it would take ... until it stalled out altogether (which took about 3-5 minutes). The whole time, the fuel pressure was falling ... and falling, until the engine stalled because of lack of fuel pressure! Has anyone CHECKED your fuel pump current draw lately? Power window motors sometimes do the same thing! You could roll them down, but going up, they would go slower and S-L-O-W-E-R until they would stop ... but would go again after cooling off a while! So, being as curious as I am, I analyzed the power window motors, after taking them out. The problem was, when the motor brushes are mostly worn down, the brush pressure exerted by the springs falls of to near zero, as the brushes get warm! It's the same story with electric fuel pump[s!

How can I check the throttle body How can I check the throttle body

So if the fuel pump was failing it will eventually stall So if the fuel pump was failing it will eventually stall

No haven't checked the fuel pump yet No haven't checked the fuel pump yet

Crazy how it idles pretty smooth revs a few then nothing with pedal on the floor Crazy how it idles pretty smooth revs a few then nothing with pedal on the floor

This is quite frustrating This is quite frustrating