H.O. issues November 27, 2005, 07:57:59 PM Well I swapped in an H.O. out of a 92 mustang with 90,000 miles on the odometer and got the computer online and swapped the MAP sensor on monday so i could drive it. Here are my issues: 1. The dipstick tube doesnt want to stay in, it had BBK headers so the boltwith the stud isnt there for the tube to mount to and it moves around alot. Well i went to check my oil today and the dipstick broke off right below the full mark. I dont know how this would happen or Why? it was there when i put the oil in before i started it for the first time and after that when i checked the oil 2 or 3 times over the last week2. I dont know why but it seems underpowered, it doesnt smoke or make any abnormal noises other than a small exhaust leak on the passenger side header(I think i blew out the gasket). The car is an Auto with 2.73 rear gears but it just seems like it is underpowered though it could be me expecting too much out of the swap. I put on a Summit 2.5" off road H pipe and Summit Turbo lers with no tailpipes yet(it sounds good when idling and when accelerating :D though it gets loud when it resonates through the car without the tailpipes) Any suggestions or advice is appreciated Thanks Quote Selected
H.O. issues Reply #1 – November 27, 2005, 08:33:36 PM Did you swap the car to mass air?92 mustangs ran with factory mass air. Our cars did not.What computer did you put in? If it was a 92 stang computer, it is mass air. This means that you would have to install the mass air sensor/meter along the air intake tube with the correct harness (since it doesn't exist on your car from the factory) and you would have had to relocate a couple pins on the harness at the computer.If you want to keep the car speed density, you need to get a speed density H.O. computer from an 88 or older stang or one from a Lincoln Mark VII.If this doesn't make sense, let me know. It's hard to explain without a lot of detail.Here's a link that might help if this is your problem.http://www.coolcats.net/tech/advanced/massair.html Quote Selected
H.O. issues Reply #2 – November 27, 2005, 10:15:13 PM Well the computer i got was supposedly from an 88 Mustang GT 5 speed, the code on it was D3D i checked on fordfuelinjection.com and it doesnt really say much about it. I know it was mass air in the Stang and the owner had an upgraded MAF sensor, headers, an X pipe, and the underdrive pulleys as far as the mods to the Stang that i know of, based on what i saw of the car when i was at the junkyard. I thought maybe they had bumped the timing so i ran some 93 octane but it didnt make any difference. Thanks for the reply Quote Selected
H.O. issues Reply #4 – November 27, 2005, 11:15:59 PM The computer you have should be speed density if it's from an 88 stang.You might also take a look to be sure you have 19# injectors. If he upgraded the MAF sensor, it may be for like 24# so something like that may be on the car. If this is the case, it could be sending too much fuel. Do you know of any other possible engine mods?It sounds like the guy who had the stang made a few modifications and maybe he did something with the heads or upgraded the cam as well.If these things are the case, the car will be sluggish unless you convert to mass air.You could also check your fuel pressure to be sure it's getting enough fuel and not starving when you step on it.Of course I'm sure the 2.73s have something to do with it. Quote Selected
H.O. issues Reply #5 – November 28, 2005, 07:58:58 AM Quote from: 5.0willgoThe computer you have should be speed density if it's from an 88 stang.You might also take a look to be sure you have 19# injectors. If he upgraded the MAF sensor, it may be for like 24# so something like that may be on the car. If this is the case, it could be sending too much fuel. If it's speed densety then you could mount five MAFs and it won't make any difference... A S/D EEC desn't know a MAF from a brake rotor...Be sure the timing is OK, HO's generally like approx 13*-14* advance, also be sure the timing is advancing to 30+* when the sprout plug is reinserted... Quote Selected
H.O. issues Reply #6 – November 28, 2005, 10:17:16 AM Quote from: TurboCoupe50If it's speed densety then you could mount five MAFs and it won't make any difference... A S/D EEC desn't know a MAF from a brake rotor...That I know but my point was that maybe the motor has injectors other than 19# if the guy who had it before him upgraded the MAF.I didn't think you could efficiently run say 24# injectors on a speed density setup unless you got a adjustable FPR and choked it down a good bit.The car may have 19#s on it but it's just something to check. I haven't seen too many mustang guys upgrade their MAF without upgrading the injectors as well. Maybe it was just a larger MAF that was still calibrated for 19# injectors. If that is the case then he has the 19#s and that is one possibility to cross off the list. Quote Selected
H.O. issues Reply #7 – November 29, 2005, 05:27:46 PM How can i be sure what size the injectors are? They are an orangish color but i dont see any markings on them. As far as other mods I dont really know. I know they are cast iron heads and the exhaust ports didnt look like they had anything done to them. the intake is the stock HO intake the only thing i dont really know for sure is the internals. Thanks for the help Quote Selected
H.O. issues Reply #8 – November 29, 2005, 06:07:33 PM Orange, yes you have 19# injectors so you're good there. Quote Selected
DTC codes Reply #9 – November 29, 2005, 06:49:39 PM Well I just went and pulled codes from the ECU and based on what is on the fordfuelinjection.com website the codes i got with KOEO were:81 82 and 95 The CM codes were:22 34 66 and 95With the KOER I got 98 and 66 (i think) I have the printout of what the site says the codes are and I have no idea what the TOT sensor(code 66) is and why it says there is a fuel pump circuit failure (code 95)I will try to get the ford "flow charts" for the codes from work tomorrow. any other suggestions are appreciated Quote Selected
H.O. issues Reply #10 – November 29, 2005, 08:10:57 PM For the code 95 likely you have no wire in the harness to send F/P voltage back to the EEC so it throws a code... Interesting, I didn't know the S/D EECs even has a fuel pump monitor, but thats the first D3D i've seen as well... The 81 & 82 are air management problems (TAB & TAD solenoids)... Usually its the Mass Air EECs that have these three codes after a swap... Code 66 can also be...MAF sensor went below 0.4 volts during the last 80 warm-up cycles.Code 89 Hard fault present. (likely because the EEC cannot find the MAF meter)You have a Mass Air EEC... That's the reason for all these codes... Quote Selected
H.O. issues Reply #11 – November 30, 2005, 09:36:19 PM Would the car run with a mass air EEC and no MAF sensor? I have been driving it to get to work and back for the last week and a half(unfortunately i dont have another car on the road right now) and it hasnt really given me much trouble, other than the ignition switch falling apart on me:flame: when i pulled the bottom steering column cover off to find out why it wouldnt stay running after i started it without hitting the steering column, it kinda lopes at idle sometimes and doesnt really seem to run as smoothly as it should while going down the road it will hesitate or kinda stumble sometimes. Thanks for the help Quote Selected
H.O. issues Reply #12 – November 30, 2005, 09:55:27 PM You know I'm having ho problems right now too. Bitch just wont listen! Quote Selected
H.O. issues Reply #13 – November 30, 2005, 10:56:01 PM Yea they'll run without the air meter and actually not real bad... The EEC has backup programming to fall back on if there is a sensor failure...Looks like you have a choice, find a meter and some wiring, or locate a S/D computer...One last thought, I assume you have a vaccum line on the MAP??? If it's Mass Air it will run about the same(maybe better) without the vaccum, if it goes pig rich then it is a S/D EEC... Quote Selected
H.O. issues Reply #14 – November 30, 2005, 11:28:38 PM Quote from: CougarSEYou know I'm having ho problems right now too. Bitch just wont listen!:rollin: Man do I know what that's like! Quote Selected
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