Go Back   Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Ford Tech
GL4x4 Live! GL4x4 Casino







Search
Reply
 
Thread Tools
Old July 18th, 2010, 04:06 AM   #1
Daniel
SFA Ranger
 
Daniel's Avatar
 
Join Date: 01-28-08
Location: Livonia
Posts: 1,142
iTrader: (8)
97 Ranger running lean with no vacuum leak. HELP!

I've replaced just about everything other then the wiring harness.

Its a 97 Ranger, it came with the 2.3L but now has a 2.5L due to hydro locking the old engine. The 2.5L has around 30k on it and is out of a 99.

I keep getting the CEL code 1443 off and on, the truck gets poor gas mileage, around 10-14mpg. It has 4.10 gears and 33" tires, but that shouldn't make it that bad, it does 70mph at 2500rpms and doesn't struggle much in 5th gear on the highway.

I've checked the wiring going to the purge valve and everything is fine, the valve is also fine and only a year or two old.

When I first start the truck. If I rev the engine above 3k it will shake really bad for about 30-60seconds and the exhaust smells like pure gas.

It could be the fuel pump or maybe an injector, I have yet to buy new injectors. I've had them professionally cleaned with BG cleaner. If I run higher octane fuel it seems to give me better mpg.

Also, the truck falls on its face till about 2k rpms then will come to life and start pulling like it has more power then it knows what to do with once it gets past that point.

I remember when I got the truck and it got around 300-400miles to a tank, now I'm lucky to see 200 from the 21gal tank.

It running like this makes me want to just spend the money and put a 2.3 turbo engine or a 302 in it, seeing as it gets shit gas mileage as it is.

Last edited by Daniel; February 22nd, 2011 at 03:29 AM.
Daniel is offline   Reply With Quote
Old July 19th, 2010, 01:07 AM   #2
Fraser
Senior Member
 
Fraser's Avatar
 
Join Date: 12-12-06
Location: Howell/Hartland
Posts: 4,194
iTrader: (27)
Send a message via AIM to Fraser
is this the factory emissions code that has some purge valve fault or something with it? ive got this one too. it comes and it goes, get the smell of gas and i still have the converter on my truck
Fraser is offline   Reply With Quote
Old July 19th, 2010, 08:05 AM   #3
Daniel
SFA Ranger
 
Daniel's Avatar
 
Join Date: 01-28-08
Location: Livonia
Posts: 1,142
iTrader: (8)
Yeah. The gas smell is coming from the exhaust. The truck runs really rich most of the time.
Daniel is offline   Reply With Quote
Old July 19th, 2010, 08:24 AM   #4
CheapThrillB2
FAWK YEAH!!
 
CheapThrillB2's Avatar
 
Join Date: 09-06-06
Location: Middleville, MI
Posts: 30,094
iTrader: (61)
Just because its not setting the code, check the MAF. Or atleast give it a good cleaning.
CheapThrillB2 is offline   Reply With Quote
Old July 19th, 2010, 08:39 AM   #5
Daniel
SFA Ranger
 
Daniel's Avatar
 
Join Date: 01-28-08
Location: Livonia
Posts: 1,142
iTrader: (8)
I clean the MAF once a year.
I was thinking it could be bad, but when I hook it up to my dads live data scanner everything MAF related looks fine.
Daniel is offline   Reply With Quote
Old July 19th, 2010, 12:04 PM   #6
Daniel
SFA Ranger
 
Daniel's Avatar
 
Join Date: 01-28-08
Location: Livonia
Posts: 1,142
iTrader: (8)
I unplugged the MAF and drove it around. I had a hard time keeping it running till it warmed up. It kinda did the idle shake I was talking about in the first post.

I'm going to replace it this week, lets hope I can locate one with a matching flash..
Daniel is offline   Reply With Quote
Old July 25th, 2010, 12:21 AM   #7
Fraser
Senior Member
 
Fraser's Avatar
 
Join Date: 12-12-06
Location: Howell/Hartland
Posts: 4,194
iTrader: (27)
Send a message via AIM to Fraser
find out anything? i have a catalyst inefficiency bank 1 that comes back on me, i just keep clearing it just b/c im short on the funds for parts. fixing that might get rid of the code for me
Fraser is offline   Reply With Quote
Old July 25th, 2010, 08:12 PM   #8
Daniel
SFA Ranger
 
Daniel's Avatar
 
Join Date: 01-28-08
Location: Livonia
Posts: 1,142
iTrader: (8)
I haven't messed with it yet. I think my dad has another MAF in his garage somewhere. I just need to find time to go over there and find it.
Daniel is offline   Reply With Quote
Old July 27th, 2010, 12:14 AM   #9
pigfat
GONE COMMANDO
 
pigfat's Avatar
 
Join Date: 01-11-09
Location: West of Monroe Michigan
Posts: 1,773
iTrader: (50)
gotta have a cat. OBDII must have a cat to operate properly. O2's read pre cat and post cat. If theres no cat , its not gonna run right.
pigfat is offline   Reply With Quote
Old July 27th, 2010, 01:06 AM   #10
Daniel
SFA Ranger
 
Daniel's Avatar
 
Join Date: 01-28-08
Location: Livonia
Posts: 1,142
iTrader: (8)
Quote:
Originally Posted by pigfat View Post
gotta have a cat. OBDII must have a cat to operate properly. O2's read pre cat and post cat. If theres no cat , its not gonna run right.
Its been without a cat for a few years. The original one split in two at the seams.

The CEL never came on after it was removed, the rear O2 sensor is lazy and doesn't notice its gone. The front O2 is only a year old.
Daniel is offline   Reply With Quote
Old February 17th, 2011, 04:36 AM   #11
Daniel
SFA Ranger
 
Daniel's Avatar
 
Join Date: 01-28-08
Location: Livonia
Posts: 1,142
iTrader: (8)
Now I've got three codes.

0302 Cyl 2 misfire (rarely comes up then goes away once the truck warms up)
0171 Bank 1 too lean (I've checked everything for vacuum leaks and the o2 sensor is working fine according to my dads scanner)
1443, same evap crap, the vac line for it is plugged so I know its not causing the problem.

I bought a catalytic converter and installed it, I have a feeling its not going to last long with the engine dumping fuel.
I did a tuneup in late spring, I used good wires and autolite iridium plugs.
I've checked the coil packs, all eight plugs have good spark.

Also, the truck gets worse gas mileage on the highway then driving in the city, one would think it should be the other way around.
I was told it could be the intake gasket, but I've sprayed everything down with brake cleaner and the idle never changed, it stays around 800rpms.

At this point, I'm about to say screw it and take it to the dealership for a full diag, it would almost be worth the 100$.
Daniel is offline   Reply With Quote
Old February 17th, 2011, 08:37 AM   #12
muddinman56
blood,sweat and beers
 
muddinman56's Avatar
 
Join Date: 10-06-08
Location: armada michigan
Posts: 3,521
iTrader: (18)
i hope u do lol and tell me what u find out mines doing the same damn thing does it bog out and have no power some times if its cold?
muddinman56 is offline   Reply With Quote
Old February 20th, 2011, 05:51 PM   #13
muddinman56
blood,sweat and beers
 
muddinman56's Avatar
 
Join Date: 10-06-08
Location: armada michigan
Posts: 3,521
iTrader: (18)
i hope this will help u but i found out what was broke on mine and it was just vacume lines
muddinman56 is offline   Reply With Quote
Old February 22nd, 2011, 03:11 AM   #14
Daniel
SFA Ranger
 
Daniel's Avatar
 
Join Date: 01-28-08
Location: Livonia
Posts: 1,142
iTrader: (8)
I've check EVERYTHING for vacuum leaks.
I used up three cans of carb cleaner and the idle never changed.

The fuel evap system is unhooked because its causing the truck to run worse.
The MAF is working. Both o2 sensors are working.

The fuel pump says its running at 100%, even at idle.

Me and my friend are thinking its either the fuel pressure regulator or the fuel pump.

The truck has 183,000 miles and the gas tank has never been out from what I know, I guess it can't hurt to throw a fuel pump and regulator at it, both parts are about 120$.
Daniel is offline   Reply With Quote
Old February 26th, 2011, 07:25 PM   #15
kickstand
sHaMoNe!
 
kickstand's Avatar
 
Join Date: 09-20-06
Location: fenton
Posts: 30,099
iTrader: (46)
Quote:
Originally Posted by pigfat View Post
gotta have a cat. OBDII must have a cat to operate properly. O2's read pre cat and post cat. If theres no cat , its not gonna run right.
u sir are retarded
kickstand is offline   Reply With Quote
Old February 27th, 2011, 09:30 AM   #16
tonkatruckon44s
Senior Member
 
tonkatruckon44s's Avatar
 
Join Date: 01-23-11
Location: La Porte, indiana
Posts: 492
iTrader: (0)
well lets see for one it is always good measure to check the for vacuum leaks with something not as corrosive like wd40 and starting fluid. be careful with the starting fluid though use it sparingly. in a year or less when all your vacuum lines and gasket and whatever other wires you got with it are junk your gonna regret using brake cleaer and carb cleaner. and then next it is always good measure to change the wiring harness when you swap out motors. i dont know much about rangers and their motors but im pretty sure you should have changed it.
tonkatruckon44s is offline   Reply With Quote
Old March 4th, 2011, 12:09 PM   #17
ScOoTeR
GLFWDA Member #07520
 
ScOoTeR's Avatar
 
Join Date: 11-09-05
Location: Howell
Posts: 21,222
iTrader: (35)
Quote:
Originally Posted by Daniel View Post
Now I've got three codes.

0302 Cyl 2 misfire (rarely comes up then goes away once the truck warms up)
0171 Bank 1 too lean (I've checked everything for vacuum leaks and the o2 sensor is working fine according to my dads scanner)
1443, same evap crap, the vac line for it is plugged so I know its not causing the problem.

I bought a catalytic converter and installed it, I have a feeling its not going to last long with the engine dumping fuel.
I did a tuneup in late spring, I used good wires and autolite iridium plugs.
I've checked the coil packs, all eight plugs have good spark.

Also, the truck gets worse gas mileage on the highway then driving in the city, one would think it should be the other way around.
I was told it could be the intake gasket, but I've sprayed everything down with brake cleaner and the idle never changed, it stays around 800rpms.

At this point, I'm about to say screw it and take it to the dealership for a full diag, it would almost be worth the 100$.
1443 is telling you your purge solenoid is borked - you can ignore it.
0171 is telling you you're hitting the lean limits of your closed-loop fuel control - check your fuel pressure, verify your MAF is good / clean and check everything between the MAF and intake ports for air leaks.

You either have poor fuel pressure, or the air you're getting to each cylinder is significantly different than your ECU had been led to believe.
ScOoTeR is offline   Reply With Quote
Old March 4th, 2011, 02:07 PM   #18
muddinman56
blood,sweat and beers
 
muddinman56's Avatar
 
Join Date: 10-06-08
Location: armada michigan
Posts: 3,521
iTrader: (18)
i was told that ford ranger have a crash safety fuel pump shut off valve and to fix it there a little red button under the carpet buy the stick shift by the front on the trans hump or what ever u wanna call it. maby that got messed up and u just need to press the button.

this is what i was told from a very smart ford guy so maby it will help
muddinman56 is offline   Reply With Quote
Old March 5th, 2011, 08:21 AM   #19
Fraser
Senior Member
 
Fraser's Avatar
 
Join Date: 12-12-06
Location: Howell/Hartland
Posts: 4,194
iTrader: (27)
Send a message via AIM to Fraser
Quote:
Originally Posted by muddinman56 View Post
i was told that ford ranger have a crash safety fuel pump shut off valve and to fix it there a little red button under the carpet buy the stick shift by the front on the trans hump or what ever u wanna call it. maby that got messed up and u just need to press the button.

this is what i was told from a very smart ford guy so maby it will help
If the inertia switch was tripped the truck wouldn't run. Just about every ford has one
Fraser is offline   Reply With Quote
Old March 6th, 2011, 06:48 AM   #20
88fordman
Senior Member
 
88fordman's Avatar
 
Join Date: 04-04-06
Location: Traverse City, MI
Posts: 487
iTrader: (6)
were you monitoring your fuel trims with that scanner while you sprayed around? feel/listen to that #2 injector and then compare it to the others. also you need to actually check the fuel pressure, then watch your guage for leakdown. good luck!
88fordman is offline   Reply With Quote
Reply
Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Ford Tech
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



All times are GMT -5. The time now is 05:57 AM.


Powered by: vBulletin, Copyright 2000 - 2012, Jelsoft Enterprises Ltd.
Copyright 2005 - 2012 Cracker Enterprises - Powered by Linux
vB Ad Management by =RedTyger=
Page generated in 0.18122 seconds with 50 queries