Ford - Explorer :: No Signal To Fuel Injectors
Jan 29, 2012
A little background, daughter came home one day with a blown plenum gasket. Car sat untouched for a number of months before I got around to replacing the gasket. After the fix I have a no start condition.
I have been able to chase the problem to no signal to the fuel injectors. I had a momentary (1-2 secs) good noid light once but no light now. Good pump, filter, pressure at the rail, crank sensor, CMP, gas etc. I have also tried a new ECM but to no avail.
Codes I was able to pull were 111, 114, 116 and 327. All pretty much reflect things outside of the main problem such as low coolant temp and the like.
I think it is a ground in the injectors circuit but not sure. Also, how to proceed about checking the ground in the injectors circuit?
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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.
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I have a 1989 GMC suburban V8 350 5.7l that will not start. I have replace the following fuel pump and sending unit, fuel pump relay, ECM computer brand new, new fuel filter. When I go to start it the fuel injectors dont spray fuel into the combustion chambers verified fuel injectors still work by bypassing them and they spray fuel. Fuse's are not blown. I have been told the oil pressure switch might be bad but I'm at my end of sanity on this.
Additional Details : Tried spraying fuel into the throttle body and still no fire, ignition module and ignition coil where replaced 15,000miles ago.
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I took my 2008 Prius to Jiffy Lube to have oil changed. When driving away, I made it about one block and all warning lights came on: Master Warning, Hybrid System Warning, Brake System Warning, Malfunction, etc. I pulled the car over and stopped. I started the car again, lights still there - drove 2 blocks back to Jiffy Lube and lost momentum about one block away, with pedal to floor, I could drive about 5 miles an hour into the bay. They looked at it for about 30 minutes and claimed I had bird seed that dropped under the air filter.... I said "goodbye" called AAA and had it towed to my dealer. They said it was because air had entered the system due to my being low on fuel. I have never heard of being low on fuel and it causing the car to shut down nor did I ever get a warning of low gas, still on one bar. Each time I restarted the car at Jiffy Lube, it started fine, drove forward or backward, then lost momentum again. Still no warning of being out of gas. The ticket from the dealer states:
"Vehicle low on fuel causing ECU to shut down fuel injectors when engine started to misfire. Found codes P0A0F, P3190 in system. Added 5 gallons of fuel and reset ECU."
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I just was given this truck the fuel pump was wired directly to the battery I ran new wire to a new relay to fuel pump using a toggle switch to turn the pump on. Now I'm getting no power to the fuel injectors does the pump relay also send power to the injectors.
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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.
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I recently bought a 94 Ford Ranger XL 2.3L. This is a Mazda engine built for Ford. There was a slight ticking noise from the engine. Two months later it has became worse and louder. I bought a mechanic stethoscope and found the noise was coming from two or more of the fuel injectors. New plugs and wires, fuel filter, air filter was done when I bought it. Cleaner has been added to the gas a few times now. I am about to replace the belts and hoses, Bosch platinum plugs and fuel injector O-Rings. I just don't know if it will be enough.
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After driving my truck for a few hours a day it doesn't want to start it cranks ok but it just wont start it feels like no fuel is getting to the injectors. I let it cool down around 30 min then it just starts this happens to me twice a week approx. i replaced the fuel crank sensor. but to no avail.
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I swapped a 4.9l into a 1997 F-350 that had a 5.8L originally, my issue is the fuel injectors are not working. I did my homework and got the harness that was with the engine out of a 1995 F-150 and also got the correct PCM to go along with my E4OD tranny that is in the F-350. It has spark and 60 plus PSI fuel pressure in the rail and will run with starting fluid shot in the throttle body. Both vehicles came with OBD I so should be compatible there. I do not have 12v to the injectors and obviously the NOID light shows no pulse either. Could be a ground but not sure where to look or what else could cause this.
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97 F150 4x4 XLT 5.4L... I had two cylinders misfiring, removed COP, injectors and plugs. Reinstalled all parts and reconnected all sensors. Now I am not getting fuel to the injectors. Double checked for disconnected wires and hoses, checked all fuses and relays, also the inertia switch. Fuel pump does not hum when key turned on. Tried hitting bottom of gas tank. My question is, before I pull the tank again, is there something under the hood I may be missing. It does get quite crowded at the rear of the motor.
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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?
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When doing my last spark plug change I noticed that the electrical plugs to the fuel injectors seemed really loose. The plastic tabs on the harness plugs don't even lock onto the injector plug. Its actually amazing that they don't vibrate loose or stay electrically connected. The plugs are not cracked or damaged that I can see. Is this a problem? I feel that I should replace the plugs with something that has more of a positive "grip" to the FI plug....
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cant figur this out have no signal to injectors and no power at fuel pump 88 f150 5-0
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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?
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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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Engine felt like it was running out fuel, injectors were clacking. I got home put on AE and it has a low high open on the code reading. took valve cover off and plug came out. I did the quarter modification.
Anyway took the truck out a few days later truck drove ok when cold then after about an hour it lost power again and started clacking until it died out. I had to stop and let it cool off about 10 times before i made it home. I changed ICP sensor. took it out for ride and about ten minutes later same thing. I have to let oil temp get down to 165 before i can drive it again.
When i first drive it Icp pressure is about 500 at idle and 2650 at full throttle, that is until it starts clacking again and losing power then the engine wont take any throttle..and ICP duty cycle is at 26%... Would bad IPR do this??
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I had my r on dyno today to see same numbers, but injectors or cutting off at 15psi.. and runs lean at high rpms. I think 550cc injectors go up to 18psi??
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My 2010 Acadia with ~53K miles had a fuel injector go bad. $1,200+ repair bill. I was told by the dealer service agent that when an injector goes bad it usually means it had an open circuit, and that is what happened to mine. Is there a known problem with the injectors? I have 5 more that could potentially fail and I am trying to determine the likelyhood this might happen again.
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92 GMC C1500 V6
No fuel to injectors, I have replaced pump, strainer and filters. Changed the filter first and ran fine with a few misses (likely no fuel?) then just got the new pump and strainer on today. Again drove fine with a few misses. Got down to the river to fish and went to leave and once again no fuel to injectors, sniffed the vacuum hose and it had no gas smell.
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I have honda civic 2005 with 170,000 miles on. My car has been little shaky with cold start in the morning and Engine light finally on. I was told that I need new fuel injectors from local mechanics. I'm a poor student so I decided to fix it myself. I was able to reach down to fuel rail and It was very challenging to take the rail & injectors out. After I finally pop them out with long driver/hammer, It is even harder to put new ones inside, all the way in. I tried put some oil at the end but still did not completely go in. Is there any special tool I need to use to put them in? I tried oils...ect.
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After changing a head gasket, I went to fire up and noticed three injectors are leaking where they meet the fuel rail. They weren't leaking before tearing everything apart and nothing was done to the rail other than moving it. From what I've searched, it sounds like O-rings. 2002 2.0 Jetta.
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