I'm burning too much fuel. I'm running rich. I have a turbo 88 2.3. I'm not getting much boost either. I ran a code scan and here is what I got:
number 24: act or vat signal out of spec
number 53: tp sensor voltage too high - wide open condition
number 66: maf or vaf sensor signal too low
number 81: boost solenoid failure (i think) - probably because i don't have one, I have the manual twisty thing, by the way is it supposed to be all the way tight or loose for more boost? I'm not getting much boost either.
number 82: not sure
number 83: egr control solenoid - open circuit failure
number 84: some sort of egr problem
number 85: not sure
number 88: dis or tk problem I think
Also the EGR I'm sure is wrong. I don't know where to hook it up to. I'm guessing that there is only one vacume line and it is not hooked up becasue I don't know what to hook it to. As for the boost when I screw it in all the way it reads 2-5 lbs and when I unscrew it I get no reading. I'm not feeling the power surge at all.
This may be left to a pro to diagnose. I would start by recording these codes for reference, clearing the codes and road testing the vehicle. Then I would rerun the koeo and koer tests and note those codes. Keep in mind that a code is a starting point not confirmation that a part needs replacement. I would probably sweep the tps with a labscope, if the computer thinks you have you foot buried on the throttle it is going to command a ton of fuel delivery. This may explain why the maf code is set. If the computer sees wide open throttle it will expect to see a given maf value, if the tps is reading high voltage(wide open throttle) it should see a high(2.5-3.5 volts) maf reading. As you can see this gets a little complicated and requires some specialized equipment and training to get it right.
Good luck.
__________________
Jim
2007 GT California Special, Vista Blue, FRP 200hp supercharger, Ford Racing GTA mufflers, GT-500 rear spoiler, 18" Polished Wheels, FRP lowering and handling kit, FRP short throw shifter. Since the blower install this thing is a rocket. CHE Adjustable Lower Contols Arms and Anti Squat Brackets. I have now changed to GT-500 wheels and tires to allow for the install of the Ford Racing 14" Brembo brake set-up.
I'm burning too much fuel. I'm running rich. I have a turbo 88 2.3. I'm not getting much boost either. I ran a code scan and here is what I got:
number 24: act or vat signal out of spec
number 53: tp sensor voltage too high - wide open condition Adjust your TPS so it reads .95V (read artical on stingers site)
number 66: maf or vaf sensor signal too low Could be caused by the TPS out of adjustment
number 81: boost solenoid failure (i think) - probably because i don't have one, I have the manual twisty thing, by the way is it supposed to be all the way tight or loose for more boost? I'm not getting much boost either. Turn right (tighten) to gain boost, left (loose) to take boost out
number 82: not sure
number 83: egr control solenoid - open circuit failure Clean EGR valve
number 84: some sort of egr problem
number 85: not sure
number 88: dis or tk problem I think
Also the EGR I'm sure is wrong. I don't know where to hook it up to. I'm guessing that there is only one vacume line and it is not hooked up becasue I don't know what to hook it to. As for the boost when I screw it in all the way it reads 2-5 lbs and when I unscrew it I get no reading. I'm not feeling the power surge at all.
Thats a ll I know
__________________
The sad thing is, with 15 PSI, straight back exhaust, and a bobs log, it still feels slow...
Maybe 20PSI, new computer, new 3" VAM, and some porting will make it faster
Thanks 4 the input, I'm a little overwhelmed. About that EGR I have no wiring or vacume to it. I don't know where it is suppose to be hooked up to. I know it is supposed to have a vacume line but to where? Is it supposed to have wiring too?
Here is the lines for the 2.3 N/A mustang (87-90) and I think yours should be very close. If its a TC engine then check out nato for the vacuum diagrams (should look close to mine)
__________________
The sad thing is, with 15 PSI, straight back exhaust, and a bobs log, it still feels slow...
Maybe 20PSI, new computer, new 3" VAM, and some porting will make it faster
Are you sure it's a solenoid that operates the EGR? You don't think it could be vacuum actuated with a position sensor attached so the ECU knows if and how far the EGR valve is open/closed?
The engine is a 2.3 turbo coupe 1989. Is there a way to post pictures on here? I could show what I have. Maybe my problem would jump right out at someone. As I said I have no wiring or vac to the EGR. I found something I did not hook up (looks like the EGR solenoid) oops. Looks like it has a couple sensors going to it as well as vac. I'll have to figue out if that is what it is and how to hook it up. Would be nice to post some pics. if possible.
O.k. I took a look over the weekend and may have come up with a problem. My wire harness and computer are from 2 different years. The wire harness has wire 35 for the EGR, however the computer needs it to be 33. Can I cut the wire and somehow plug it in to 33?
Thanks, I was able to to eliminate 24 ( don't know how) and 84 so far. I think 81 may be because I removed the boost solenoid, 82 I'm not sure yet, 83 maybe because I have an after market fuel pump and cooling fan setup, 85 maybe that I don't have a transaxle or CANP, 85 could be The Throttle kicker?, and 53 I think i may have a bad sensor at the TPS, 66 I might need a new MAF or VAF.
1988 Mustang 2.3L I've Got Codes - Now What? 
I'm burning too much fuel. I'm running rich. I have a turbo 88 2.3. I'm not getting much boost either. I ran a code scan and here is what I got:
