My truck threw a P2073 code. Its Manifold Absolute Pressure/Mass Air Flow - Throttle Position Correlation at Idle. I do have aftermarket intake. It threw this code 2 weeks after install. Does this mean my mass air flow sensor is going to fail soon?
View 14 RepliesI've done some searching on this site and found some good information but I still have some questions about Fuel Pressure and fuel flow. A few months back when I had a bad injector and bubble tested to verify and it took around 15 seconds to fill the bowl(filter removed) from near empty is that normal or the sign of a healthy HFCM?
Tonight I was able to check the fuel pressure for the first time and when I turned the key on fuel pressure was slow to build for 2-3 seconds held at 20 psi then spiked up to 62psi and stayed at that psi during the starting cycle and held steady during idle. Is it acceptable to hesitate with a pressure build at the beginning of the cycle?
My truck threw a CEL after the first start today. The CTS reports it twice. I noticed it about two minutes after start.
P02E1 - Diesel Intake Air Flow Control Performance
The air box gauge is green and it doesn't reset when I push it so that appears to be fine.
The one thing I can easily notice is the sound of the turbo. Typically when I stop and park, the turbo spools up, then down, then spools again and gives a sigh of relief and it's then silent. It's not doing that currently.
Now, I can hear it constantly when parked and it spools down after I turn off the engine, even two minutes later. That is not normal for my truck when I wait for the above to finish its routine. When I start the truck, the turbo immediately spools to where I can hear it which is also not normal, as if it's building 0.5 psi. I realize that's funny to say on a turbo diesel but I know the sounds of my truck. The EGT's are fine, EOT, ECT, TFT are fine and I can build boost when driving without issue. I took the drive to work easy this morning so the highest I noticed was 10 psi.
I restarted the truck after a 20 minute drive to the office and it didn't clear the CEL. The CTS squawked four times when it woke up the second time but it didn't show me which PID it was upset about.
I'm thinking this has nothing to do with the CAI and this is something downstream of there. EGR related? I haven't opened the air box yet, at work and in dress clothes so that'll need to wait. My past four or five regenerations all started between 1.94 and 1.97 soot gpl. That is also not normal and is something I have been keeping my eyes on. Currently the DPF is at 2.10 so it has made it further. Normal behavior (post emissions flash) is above 2.54 soot gpl for an AR.
I am driving a early 2004 F250 CCSB with a 6.0l. I have a Code that is for an EGR Low Flow. I have a Scan Gauge II that I have been using to try and determine why this is. I have replace the EGR Cooler (unrelated), the EGR valve, and the MAF.
My EVD and EVM are tracking. My IA1 reads a letter (B usually) and 3 numbers that are in the 6 to 900 range. My IA2 appears to read normal with atmospheric temps at start up and goes up and down IAW the EVD and EVM readings. My FIA (already programmed) reads outside temperature along with the overhead console. The EBP reading doesn't exist, it is blank.
I'm going to do a weld-in-plug delete in my RV in the next couple weeks, and its a crapshoot apparently if it'll throw a code. My immediate concern is I want to go on a trip right after, and I won't have time to fiddle about getting an SCT tuner to turn the code off. What I definitely don't want is a code for EGR flow restriction to eventually cause my motor to go into some kind of limp mode while I'm in the middle of a long drive. Is this possible?
View 14 RepliesI was chasing down a P2074 CEL and thought it was a stressed wiring harness connection on the MAF.
Took it to the Ford house and they chased it for 2 days, believing it was the MAF and air filter. They told me that air filter was allowing to much air in. My thoughts was, that is was what MAF is for, to regulate the fuel based on how much air was going in.
I just found out that they are stating that an AFE dry air filter contributed to a cracked intake manifold because the aftermarket air filter made the intake get too hot.
The truck in question is a 2004 6.0L Excursion, stock original turbo, no tunes, and EGR cooler delete done 1 year ago. Scanned for codes and none were found except for EGR insufficient flow P0401 code which is due to the EGR cooler delete.
Upon startup (no issues there) the VGT reads 67-70, now once the truck goes to high idle to warm up (1150 or so RPM) the VGT slowing climbs to 85 and stays there. If I blimp the throttle or step on the brake it goes back to 67-70 at normal idle. This has been happening for a few months now on a regular basis. I have checked the MAP, BARO, and EBP readings at KOEO and they are all within 0.6 of each other (14.4-15.0). The EBP tube was checked and cleaned (no buildup present)..
So, I've got a new toy (FORscan ODBII software) and a new code that isn't turning on the CEL (yet) but also didn't show up in OBDWiz either.
P1100 - Mass Air Flow (MAF) Sensor Circuit Intermittent
I cleared it, drove a few miles, checked again and it's set again.
The little troubleshooting advise window in FORscan says to monitor the MAF voltage while wiggling the MAF harness and see if the voltage goes below 0.23v or above 4.60v. I was unable to manually make that occur, no matter how I tapped on the MAF or wiggled the wiring.
However, in oscilloscope mode, look at this (at idle):
It sure looks like it went below 0.23v here. I have no time tonight to do any research. This is a relatively new MAF (one week old, Delphi unit). I think I'll swap it out for one of my two old OEM MAFs sometime this week. But if any opinion about this, pipe up. I do damned little work with scanners these days, and the tech keeps changing.
Need to diagnose an issue with my 2012 GTI its got 39,000 miles its stage 2 Unitronic tune. So I was driving like an idiot coming home one night and i jumped a set of train tracks. Bent my plastics a little and when I cranked my car the next day my CEL was on. I noticed my intake was much noiser than usual. My buddy checked the code and said i needed a new mass air flow sensor. We replaced it and my CEl came back on within 20 minutes of replacing the sensor.
View 5 RepliesI am throwing a code for long term fuel trim being out of whack (code 17560) and I am trying to determine whether the MAF is causing it.
I pulled several redline runs while logging flow rate in vagcom. According to Ross tech's site they suggest that your flow rate should be around 80% of the engines rated horsepower. So approximately 200 g/s. I did several runs and never broke 100 g/s so what I should be seeing or has run into this code before.
"VSC OFF" light came on the other day. I took my RX350 to the dealer. The dealer said Heater Element sensor is bad. They didnot have this part in stock. I googled this part. Nothing comes up under that search. I took it to Autozone and the code came up as Mass Air flow sensor. Are both of these same thing?
View 7 RepliesMy check engine light keeps coming on sporadically and giving me a PO101 error code...then I'll reset it after making sure my MPG hasn't dipped a significant amount (which is my "concrete" way of gauging if it's performance is impaired) and it'll come on 1-600 miles later. There's no consistency in environment or conditions that are triggering this sensor, at least it's not obvious to me. I finally looked under the hood at the filter and it's a little dirty, but not nearly dark enough for it to be the problem.
View 4 RepliesI just did a bunch of work on my 6.0. Here's a list- head gaskets, arp studs, new heads, 2 new injectors, updated stand pipes and dummy plugs, water pump, and all new injector o-rings. After messing around with a bent pushrod, cylinder 5 code and and replacing injectors the truck runs excellent. After driving it a bit I get a code "P2290 injector control pressure too low". The truck runs great with no low power, stalls, or hard start cold or hot. I do puff black smoke but that's because of the sct tuner on performance tune.
View 8 RepliesI cleaned my k&n air filter on my 02 passat 1.8 turbo let it dry oiled it very lightly, and 50 miles later I get a check engine light on, pulled the code 16486 and it says Mass or Volume Air Flow Circ Low Input. Cleared the code put a frame in until I can get it filter. Why that would throw me that code, k&n oil gumming up my sensor??
View 2 RepliesMy 05 excursion died on me a couple weeks ago. First it threw a p2290 code for low injection control pressure. It did this a few months ago and had no problems. Cleared code and did not come back until now. So I cleared the code. Drove a few more miles and lost all boost pressure. Still fires up and runs. It does run a bit rough but only a little bit.
I replaced the oil cooler, did egr delete, and put an IPR remote oil cooler and full flow coolant filter on it few months ago. Since it died i pulled the ipr valve and it looked good. I put a new screen o-rings, and wiring pigtail on it since it was out. Put back together and still no boost. I really did not figure that would fix the boost issue but i wanted to make sure the screen was not clogged or torn.
Truck will fire up cold and warm with no problem and run. The hose from the map sensor to manifold is good and i put new clamps on it.
2005 6.0 with 95,000 miles.
ICP duty cycle = 0.29
map kpa = 102
Injection control pressure = 5.91 MPA
I have a 2004 6.0 with 75000 miles on it. My truck is throwing a P0470 code pointing at the exhaust pressure sensor. my question is do I need this sensor or can i bypass it? When I look up the part it only shows 2005 and up.
View 6 Replies2004 Excursion 6.0L .... Recently after a 200 mile trip through the mountains running good, I get home and the next day it idles down the driveway at a high idle and after a few minutes seems to run better but within 5 miles the CEL comes on and throws P2287 - intermittent injection pressure control circuit. I cleared the code, ran around town again and the light came on again same code. I'm getting appropriate ICP-voltage and pressure readings. I took it home sat overnight and thought I would pull the ICP sensor.
I replaced the ICP sensor less than 6 months/5,000 miles ago. I also changed out the main engine harness at the same time. I looked at ICP sensor and it looks clean. Started the truck and tried the scientific wiggle test while running and monitoring ICP-voltage. Started at the sensor bending and wiggling back to FICM. No fluctuation in voltage. Ran the truck around town, 20 miles and no light. Yesterday we made the same 200 mile trip over the mountains, seemed to run strong. In town this morning within 5 miles the CEL is back on and the only code is P2287.
My Ford powertrain diagnostics manual doesn't have the P2287 code in it for troubleshooting. Should I go after the FICM, and how do U test that if so? I'm currently that 200 mile drive from home and don't want to damage anything more.
Engine light came on yesterday and started missing on take offs. Giving code p2285 Injector Control Pressure Sensor Circuit Low. I've done the research and understand the problem. It's the weekend and shops closed until Monday. Is it safe to drive in the mean time? Is there any risk of doing damage? What's the risk of it quitting or failing start in the short term, today?
View 2 RepliesB5.5 GLX 4Motion ... My Car has no Power. Idles rough. Take off is slow. I can stomp it to the floor but the RPM needle barely moves.
Mechanic says I have many codes going off but thinks its the MAF. Already spent a bundle (misdiagnosed or ripped off) on other non related stuff that was supposed to fix this problem.
Mechanic says 90% sure but part is non return able. Need to know where to get the MAF cheap and quickly. Also part number or other identifying information so I don't get the wrong one.
Well I was fueling the truck today and I opened to hood to check it out and noticed that there was no pressure in the cooling system by squeezing the upper hose. I did have a spare degas bottle cap and removed the old one slowly and replaced. I have been driving over 30 minutes and it is close to 100 degrees.
I then drove on down the road, the truck is not getting hot. I stopped to look at some running boards and the truck was running and then I came home and still no pressure, the truck is still running, I removed the cap and no pressure, I then removed the small hose going to the top of the degas tank and no coolant came out. I turned the truck off and disconnected the upper hose and some coolant did come out.
Is this normal? The truck runs just fine, just has me worried. I just bought the truck and the previous owner recently replaced the water pump, T-stat, hoses, etc. All parts were bought at O'Reilly. So everything looks good.
Is the irp high flow oil cooler any good? Or is it better to stay with the oem
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