Ford Fuel System :: 1988 F250 - Injectors Not Engaging
I have a 1988 f-250 with a 460 motor. I have fuel and I have fire. And the truck starts with I prime it. I tried looking for the crank sensor but can't find it. I looked behind the balancer and I didn't feel any wires or anything. I checked on the sides of the motor nothing. It has a new coil pack and ignition mod. Fuel pump and starter. What else can it be?
View 4 RepliesFord Fuel System :: 1993 - Idle Erratically - Miss And Surge And Basically Tries To Die
1993 f-150 with 1988 5.0 with no pollution stuff fuel injected. here's the problem. Starts fine and idles great for about 5 minutes , check engine light comes on and it very nearly stalls at which point it begins to miss and surge and basically tries to die.
If I feather the Throttle i can keep it running but not smooth!! Can't find and vacuum leaks and the egr seems to be working (push plunger up - trk). dies. Ran fine when I bought it this way about 1 year ago and all of a sudden this. note.... It started doing this after it ran low on coolant but did not over-heat.
Ford Fuel System :: 1988 F250 / EFI - Slow Return To Idle?
Its an 88 F-250 4x4 with a 302 EFI 5-speed. Fair compression, runs smooth. When I press the gas pedal it takes about 5 seconds for the old girl to return to idle. I know nothing about EFI. My buddy,s out of town with the hand held mechanic. Is there anything I could check till he gets back.
View 6 RepliesFord F-150 (2004-2008) :: Rough Idle And Dying / System Adaptive Fuel Too Lean Bank 1
2004 f150 fx4 w/ 5.4 .I have a code that read " system adaptive fuel to lean bank 1 " and the same for bank two. So, I got on here and did some research. Cleaned the throttle body, maf sensor, air filter, looked for vacuum leaks, changed the fuel filter and it still is running very poor at idle and it seems to be getting progressively worse...
View 2 RepliesSanta Fe (CM - 2007-12) :: 2008 - CEL On / Fuel Trim System Lean At Idle
I just got this 2008 santa fe a month ago from the dealer with 80.000 miles , and then yesterday the check engine light came on, i took it to auto zone and the put the computer and this 2 codes came up:
P2187
Fuel trim system lean at idle
explanation
the average long term fuel trim values at idle are more than 30% for 10 seconds
probable cause
- low fuel presure
- failed MAF sensor
- large vacuum leak
- cylinder misfire due to ignition system failure
P2189
System too lean at idle bank 2
explanation
failed MAF
probable cause
- low fuel presure
- vacuum leak on engine
- failed HO2S ( heated oxygen sensor-bank2 )
Ford Fuel System :: 2003 F150 - Service Light Randomly Comes On / Code For Left Bank Running Lean
2003 f150 supercrew with 166,000 miles on it. Daily driver. Service light randomly comes on and when code reader was put to it shows "left bank running lean." Will clear it and will randomly come back on. Truck seems to be running fine. No issues engine. Bad sensor? Or bad injector? Maybe way to test?
View 1 RepliesPassat (B5) :: Check Engine Light Came On - Code P0171 / Fuel System For Bank 1 Was Too Lean
We have a 2003 Passat 1.8t. Had the Check engine Light come on. Went down to AutoZone and hookeded up the OBDII reader. Came up with P0171, Fuel System for Bank 1 was too lean. Probable causes:
1. Fuel Pressure of MAF (If Bank 1 & Bank 2 set codes together)
2. O2 Sensor
3. Ignition Misfire
4. Fuel Injector Problem
Car has 60K - has always run well. Wife says she thinks it's running a bit sluggish. I rarely drive the car, but I think she's right. Car is not missing or running rough.
I cleared the code & started the engine; Check Engine Light is off; then looked at the codes and I find a P0171 (Pending). She tells me that the light has been on before & then gone away. So I guess it clears itself, but eventually comes back.
Lexus RX 2004-09 :: Off Idle System Too Lean - Gas Pedal Long Term Fuel Trim Jumps To 29
Have a system lean code popping up. long term fuel trim at idle is 14. No misfire counts. adjusted fuel trim from full rich to lean still no misfire counts. When on test drive and found after accelerating on the freeway soon as i take my foot off the gas pedal long term fuel trim jumps to 29 and multiple cylinder misfires start to occur. I take car off freeway and at stop light can feel misfire and fuel trim still at 29. coast it into the shop and at idle LTFT down to 10-14. Sprayed brake clean all over intake manifold but wasn't able to register any change in fuel trim. Fuel pressure is within spec. Cleaned MAF and Replaced with known good. LTFT still high
View 2 RepliesToyota - Corolla - Fuel-economy :: 2005 - P0171 Check Engine Code / System Too Lean
I have an 05 Toyota corolla, and have the check engine light on, I scanned it at autozone and error code is P0171 - System Too Lean (Bank 1). Which shows following possible causes: Faulty MAF, O2, fuel injectors blockage etc. On recommendation from the guy in autozone, I added fuel additive to clean the fuel line/ injectors. The check engine light went away for 9 months. But it is back on again. Tried putting in fuel additive again but the light remains on.
View 5 RepliesFord Escape / Hybrid :: 2001 - Code P0303 And P0171 / Cylinder 3 Miss And Lean Condition Bank1
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.?
Ford Fuel System :: 2001 F150 - Truck Will Not Turn Over / No Fuel From Injectors
I've got a 01 f150 yesterday stopped running (like it ran out of gas). Has half a tank. Fuel pressure at rails good but truck will not turn over. Fuel pump and filter less than year old.
View 1 RepliesFord Fuel System :: 1988 F150 - No Signal Going To Injector - No Power To Fuel?
cant figur this out have no signal to injectors and no power at fuel pump 88 f150 5-0
View 2 RepliesFord Fuel System :: 1988 E350 - Fuel Coming Out Of ECS Canister?
I have an 88 E350 With a 460 EFI . Problem is there fuel is coming out of the ecs canister . It has the dual canister set up fuel comes out of the rear one after the engine starts. I have never seen this before. What would cause this ?
View 2 RepliesFord Fuel System :: 1988 - Fuel Pressure Drops Off Fairly Fast When Turned Off
Working on a 88 Ranger 2.9L 5-speed ext cab. The fuel pressure drops off fairly fast when turned off and I'm pretty sure that the check valve is bad. My question is, which pump has the check valve? It is a single mid tank set-up and has a pump in the tank and on the frame.
Pressure is fine while running. about 30psi @ idle and 40psi with no vacuum on the regulator. The pressure drops off within a couple of minutes which causes it to have to crank over for a bit to rebuild pressure and start.
It looks like the frame pump is readily available while the in take pump is special order. I just need to know which one has a check valve. I'm thinking the in tank pump, but I hate to waste money for the wrong pump.
Pressure drop rate
30 psi @ shut off
25 psi @ 1:05 min
20PSI @ 2:30 min
15psi @ 4:45 min
still dropping
Ford Fuel System :: 1988 F250 Stalls - Random Fuel Pressure Loss?
I have a 1988 Ford F-250 Lariat, 7.5L 460, four-wheel drive. I have two fuel tanks on it, and I've been having a really annoying, obnoxious problem with it lately. After running it for a while, I noticed that I keep losing fuel pressure, and the truck stalls. When I try to start it, it does nothing but roll over. It just won't start. I've changed the fuel filter, I know both fuel pumps are working (I turn over the key, I can hear front, back, and high pressure pump attached to the left side frame rail kick in.) It's Fuel Injected, not EFI, hence that third pump. The problem happens a lot, and it's random. I could drive for 100 miles, stop to get something to eat, come out, and it won't start.
I thought maybe it was the fuel pressure regulator, but I don't think that's the case because it still runs. I would assume that if the regulator was bad, it wouldn't run at all. I also thought that maybe it was the relay, but according to some mechanics I spoke too, if I can hear the pumps kick in when I turn the key over, then the relay is fine. The only thing I could think of is that it might be the fuel selector switch. Maybe it's going bad, shorting out or something. When I flip the switch though, it switches between fuel tanks, and the gauge reads how much fuel is in it from the sending unit.
There's a schrader-type valve up by the fuel injectors. When I push it in, it barely squirts any fuel out, if at all, so I know the pressure is low. When I push it in on a good day, it sprays out like a water fountain. Just tried starting it again - no good. Pushed on the valve, it spurted out some fuel pretty well, but still won't start. Occasionally tries to, but ultimately won't. I know the spark is good, checked the plugs/distributor cap. Can't get the sucker to start.
Ford Fuel System :: 1994 - 4 Injectors Do Not Pulse
I have a f53 motorhome and 4 out of the 8 injectors pulse. The front 2 and the back 2 don't pulse. The middle 2 on both sides work perfect. Why would they not pulse and only give out positive on the two wires to the injector on the one that don't work. The ones that work they pulse.
View 8 RepliesFord Fuel System :: 1986 F150 Idling Rough / Leaking Injectors?
I have an 86 F150 that is idling rough. It used to cut out on me until I replaced the fuel pressure regulator. I have read in other posts that the problem for my rough idle could be leaking injectors. When I replaced the regulator I found a bad injector. My question is that if I check my fuel pressure, with the new regulator, would the only way I would lose pressure be that my injectors are leaking?
View 5 RepliesFord Fuel System :: Can Broken Dipstick Tube Cause Lean Codes?
It's really not relevant what brought up this question but do you think a broken dipstick tube can cause an engine to run lean and why do you answer that way?
View 3 RepliesFord Fuel System :: 1988 F150 - Cuts Out Under Load?
My 88 F150 (300 six, 5 speed, dual tanks, 176,000 miles). The truck has the low pressure fuel pumps in the tanks and the high pressure pump on the frame rail setup. Truck starts fine, but cuts out severely under acceleration for the first 30 seconds of driving. After that I only notice the problem when applying a lot of throttle (does not cut out under gradual acceleration) or climbing steeper hills. If I kill it for a few minutes and then take off again the problem is back for the first 30 seconds or so. I have replaced all the tune-up type stuff (all filters, plugs & wires, dist. cap & rotor, ignition coil, o2 sensor, cleaned throttle body, replaced IAC valve, numerous sensors). Timing is dead on at 10 deg. BTDC with SPOUT unplugged. My FPR was bad so I also replaced that. Condition exists regardless of which fuel tank I am using (no problems with tank selector).
Getting no KOEO codes, but getting KOER code 41 and plugs do seem to show a lean condition possibly. I'm still averaging around 16 MPG since this became a real problem about 3 months ago.
I removed the bowl from the reservoir between the tanks and the high pressure pump on the frame. No filter in there, but it was clean with no gunk or sediment found. I removed the line from the inlet side of the high pressure pump and found that while cranking the engine I have fuel flowing freely (same amount of flow regardless of which tank I've switched to). The flow was steady, but not extremely strong. If I understand right the in-tank pumps are not designed to provide much pressure? Below is what I found at the schrader valve:
key on, engine off - high pressure pumps runs for about 1 second, brings gauge up to 48 psi
idle, FPR connected - 40 psi
idle FPR disconnected - 52 psi
revving throttle with FPR connected - 46 psi maximum
Connector, where fuel pump relay plugs in, seems to be clean and not corroded at all.