Ford Escape / Hybrid :: 2001 - Code P0303 And P0171 / Cylinder 3 Miss And Lean Condition Bank1
Jul 13, 2016
Brought home tonight a 2001 Ford Escape 3.0L 24 Valve V6. Bought it from a mechanic who's customer didn't want to put any more money into it. Has 185000 miles on it and it throwing the P0303 & P0171 codes. Cylinder 3 miss and Lean condition bank1.
Mechanic thinks it is a valve seat in the cylinder head next to the fire wall. Before I start replacing the cylinder heads with new remanufactured heads I plan on doing a compression test and leak down test.?
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Check engine light came on and stopped by the local autoparts store to get the error code.
Code: P2270
Bank1 Sensor2 fault
Where is this O2 sensor? I've replaced O2's on other cars I've had and just want to make sure I replace the right one.
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What to look for. 2001 escape 3.0 starts and runs but it has a miss and no codes came up yet . the engine will rev up but it really takes time to idle down . don't matter if its cold or hot it just don't want to drop to idle as fast as it should.
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I got a 2001 Escape XLT (V6) a couple of months ago. Its in great condition, only 82k miles on it too. It had the notorious door handle issues which I have had fixed. It also had the wet weather stuttering problem, which I had fixed by having all 6 spark plugs replaced (Motorcraft OEM plugs), the back 3 coils replaced, upper intake gaskets replaced, Valve cover gasket replaced, PCV valve replaced (motorcraft).
It runs great when its warm, the problem I am having is when its cold outside and the engine is cold, it starts up fine but idles like crap and if its really cold outside, it starts and dies 3 or 4 times before it can even get to the crappy, stuttering idle. I have to intermittently feed it gas to keep the cold idle going long enough (3 or 4 minutes) before I can drive it. Once the engine is warm it drives like a champ. The only warm engine issue, is occasionally after driving it and putting it in park, the engine will rev up to 2000, 3000+ rpms, and just keep going up until I shut the engine off.
The codes read P0171 and P0174, which are lean on bank 1 and bank 2. It had also thrown a misfire on cyl 6 but once I cleared that it hasn't come back, just the lean codes are still present.
From what Ive been reading, this can be a number of issues, ranging from the IAC valve, EGR valve, MAF or the lower intake gaskets. I'm very much a rookie when it comes to car mechanics, but I think I can handle changing the IAC, EGR and MAF since they are all on top of the engine. However I don't know if I could handle the lower intake gaskets. Ironically, the gaskets are the cheapest part, but the most labor if I paid someone else to do it.
If I replace the EGR, do I also need to replace the EGR Modulator as well? Looking for brand names that are best bang for the buck when it comes to these other parts I have mentioned?
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I have a 2001 Passat 1.8T that has the pesky MIL light on with a DTC code P0171 lean system. I have sent it to the mechanic many times to no avail. What the mechanic did was replacement of the MAF, O2 sensors, checked intake manifold leak as well as exhaust manifold leak. His last attempt was to check for clogged injectors and fuel filter and they were in good condition. He says the ECM is bad. I was able to retrieve freeze frame data as well as live data which shows that the computer is compensating what it thought was lean by having very positive LTFT of 22.6. I don't believe the ECM is bad but cannot be sure. There is one more thing that was not checked by the mechanic is the EGR valve. Could that be the cause of my woes - the lean system?
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I recently had some work done on my 2001 VW Passat 1.8T (timing, water pump, major tune up). IT had 72K miles.....
Now I'm getting the following:
Code P0171 Too Lean (Bank 1).
Emission Light turns on / off.
Check engine light comes on and stays on after about 20 miles. Can this be the oxygen sensor?
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I picked up a really cheap Hyundai Elantra 2005 that the kid that owned it really beat up on. Right now I am trying to sort out the issues so that it can become my daily driver for the next few years.
Second issue, The check engine light is on and it is popping up a P0171 generic engine running too lean code. The car looses power sometimes and I can smell gas in the car. I have a friend that is going to be loaning me his MAC code reader so that I can see if it is one of the O2 sensors and if so which one tomorrow.
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I got a check engine light. I went to Auto zone to get it read & they came up with a P0303 - Cylinder 3 misfire. Since I bought the vehicle a couple of months ago, I don't know when the plugs were last changed, so I decided to change them. However . . .
Is there a secret to getting the plug boots & wires out of the hole and off the plug without wrecking the wires?
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2003 hyundai accentra and I have trouble code P0303 misfire detected cylinder 3 the car would run rough and hesitate at idle and run rough in drive and reverse I checked the plug gap on number 3 cylinder and it was excessive so I regapped it and put back and the car run good for about a day and now the engine light is back and is running rough and hesitating.
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I have a 2001 ford escape v6 the engine light is on and when advance pulled a code it came back egr valve is sticking and #2 is not firing.. I have a 2002 v6 parts car that I ran hot I took both parts off and put on my 01 buts its still running the same..
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I have a 2002 prius with 130,000 miles on her, and so far so good except for a small problem for the last three months, I get an intermittent P0171 code. I know it means Lean Condition in Bank 1. However, I can run the car for weeks without it coming on. If I go full throttle getting onto the highway for example it may come on, but even then its not all the time. Not sure why only full throttle. But if I drive her gently, I will never see the CEL at all.
Fuel economy is around the usual for me at 46-49 mpg with average speeds of 75-85 mph. I don't think its vacuum related.
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Working on my son's 2001 sport trac. 200K miles but it has always been a great running truck.
I have two CEL codes:
P0171 System too Lean (Bank 1)
P0174 System too Lean (Bank 2)
I have found several issues so far, but have yet to get rid of these pesky codes.
So far I have changed:
- Intake Gasket - I had coolant loss which replacing this gasket fixed.
- PCV Valve and Hose - valve was damaged and the hose leaked.
- EGR Valve - Valve was leaking
- Fuel Filter
- Mass Airflow Sensor
The engine does appear to be running much smoother now, but the lean codes remain.
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I know I can fix this problem, but my question is which cylinder is #4? I don't see it marked on the engine. The counter guys at both my local parts supply stores (whose initials are A and O) can't even look it up for me. If #4 is on the front of the engine, then it's an easy fix. If it's on the backside, then the intake manifold has to come off to get to the plugs and coil packs. It's a bit more labor. I can do it, but I'd rather not have to.
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It has been running very smooth since I changed the lower intake gaskets, and I just went on a 1500 mile round trip roadtrip. It ran perfect the whole way, getting 22mpg to boot. In the last 50 miles, the CEL came one. The code read P0420 which is the cat converter? I dont want to fork up for a new one, are there any tricks to get this fixed or cleared?
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1988 F250 351 5.8
I've worked for months on this truck and I now have it in the shop. The truck shows a 41 code and has a lean miss at idle that get worse during acceleration and cruise. The injectors were refurbished 6 months ago and the ECM was replaced 3 months ago. All sensors are new and within specs. Fuel pressure is good and there are no vacuum leaks.
The mechanic has verified that the condition is not electrical related. The O2 sensor will react if carb cleaner is sprayed into the throttle but other wise shows constantly lean. He's now checking all pins at the computer for any off condition. He is suspicious of the refurbished injectors. I'm wondering if the computer somehow went out again. Which way to go or what/how next to test?
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I picked up a 2001 Escape 2.0 manual with 160K. She runs great but I realized that the airbag light was burned out so I hooked up my scanner and pulled 2 codes C1414 and B1869. I changed the bulb and cleared the B1869 but the C1414 remains. the airbag light also flashes and gives me a 29 code. I am not finding much on the subject. The airbags appear to be there and it does not appear that it has been wrecked. I am guessing that it is the airbag control module. Where the module is located on this vehicle.
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I am having a difficult time trying to fix my CEL issue, The vagcom scan says P0171 & P0174 Lean banks 1 and 2. I don't believe both O2's went out I have Checked and cleaned the MAF Sensor did a quick vacuum leak inspection and all seems good. I have a GIAC ST 1 and an AFE intake with noise pipe delete. I can reset it but it returns after a day or so.
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I just purchased a 2003 F250 Super Duty with the 6.8L V10 It has really high miles on it as it was a landscaping companies fleet truck. I'm sure that it was pretty well serviced as it has 300K miles on it and it's still running pretty decent.
I picked up the truck and I have to get the smog done soon. It idles with what I can only describe as a slight miss and it runs and drives great. seems to have plenty of power for the miles that's on it.
There is no active CEL on but I scanned the OBDII system and found a P0171 Lean bank 1 code in the pending codes list of the scanner. I guess this year engine doesn't have an EGR Valve or DPFE sensor because I've looked high and low for it and there non existent on this engine.
I've checked for vacuum leaks by spraying brake cleaner or carb cleaner all over the place and it makes no difference and all the vacuum lines and connections look okay.
When it's running It does sound like a vacuum leak right behind the top of the plastic throttle body but I can't find it, I don't know if this big *** engine just sucks that much air or what.
Like I said I need to smog this thing soon and I don't want it to fail if it's missing or has another issue. The fuel injectors look new and one coil pack looks like it's a replacement...
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I just bought a 99 f150 and the check engine light came on with code p0171,system too lean bank 1. It runs and drives fine but has a strong smell of gas when I shut it off.
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I have a P0171 code (lean bank 1 sensor 1) on my 2002 toyota camry 4 cylinder. I don't have any other codes except for an unrelated P1780 neutral safety switch code. It has had both codes for over a year.
I have replaced the fuel filter, the upstream o2 sensor, and the PCV valve. I also cleaned the MAF sensor. The mechanic performed a smoke test and found no vacuum leaks. Did a fuel pressure test and it's normal. Mechanic thought it would be fuel pressure because the car starts a bit slow when cold, but nope. The car runs great and still gets great gas mileage. I've never experienced a misfire in my 12 years of owning the car. I am asking because I am at a loss as to what it could be.
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I have an 07 passat with a 2.0 4 cyl turbo and I have an error code of P0171 system too lean (bank1) but engine seems to run just fine, what this code means, am wondering if it is something I can fix or if it needs to go to the shop??
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