88 tc help error codes help December 27, 2015, 06:18:14 PM I have a code 88 and 85 in my thunderbird turbo coupe after putting the motor in and getting it running and also my firm ride light blinking 3 times Quote Selected
88 tc help error codes help Reply #1 – December 27, 2015, 09:52:05 PM Codes 84 & 88: I suspect you have lost the power and or EEC connections to your A4LD automatic transmission solenoids.Don't know anything about your blinking light. Can't find it in the diagrams. Quote Selected
88 tc help error codes help Reply #2 – December 28, 2015, 12:36:57 AM It's a manual car tho Quote Selected
88 tc help error codes help Reply #3 – December 28, 2015, 01:38:22 AM Any chance the EEC is for an automatic trans?Past my bedtime. Goodnight. Quote Selected
88 tc help error codes help Reply #4 – December 28, 2015, 02:28:21 PM Some Googling came up with these ECUs for 87-88 Turbo coupes:Automatic LB2-LB3Manual LA2-LA3 Quote Selected
88 tc help error codes help Reply #5 – December 28, 2015, 02:50:01 PM So I would need check the code on my computer Quote Selected
88 tc help error codes help Reply #6 – December 28, 2015, 02:52:22 PM Quote from: kitt2008;453111So I would need check the code on my computerThat's what I would recommend, if you are not sure what you have. Quote Selected
88 tc help error codes help Reply #8 – December 28, 2015, 03:38:58 PM That explains the error codes.I have no idea if that affects the drivability. I think the auto ECU limits the boost so as to not put too much strain on the A4LD.Don't know if it has any other differences . Quote Selected
88 tc help error codes help Reply #9 – December 28, 2015, 03:44:54 PM ok since this is a project car and i didnt put the computer in it can you tell me if i go to a junk yard and get a 5 speed computer will it plug and play and get the boost at the 15 pounds thanks for your help i just put a motor in it and now time to chase gremlins Quote Selected
88 tc help error codes help Reply #10 – December 28, 2015, 03:50:49 PM Yes it will plug and play.As for how much boost you will get, you will have to wait for someone with turbo experience to chime in. Quote Selected
88 tc help error codes help Reply #11 – December 28, 2015, 09:26:13 PM The boost is controlled by the waste-gate and bleed through the boost solenoid (controlled by the eec) and orifice in the turbo waste gate actuator itself. IIRC, auto turbos have the bleed set to allow turbo boost to ~10psi, the manual turbos have a larger orifice drilled in the actuator and allows for ~15psi. Of course, a ~$50 Gillis valve allows you to bypass the solenoid entirely and control your boost level (plus it allows boost to build at lower RPMs, entirely changing the characteristics of the car for the better...)As far as codes, the NATO site has a good rundown on what codes mean for the Programmed Ride Control (PRC) in their faqs. For the eec, the codes may be on cool cats or can be found here by searching, I believe.Good luck,Daniel Quote Selected
88 tc help error codes help Reply #12 – December 28, 2015, 09:28:42 PM BTW, Where in NC are you? If close to the triad, I may be able to swing by soon with my 88TC to help troubleshoot. Quote Selected
88 tc help error codes help Reply #13 – December 28, 2015, 10:33:47 PM Quote from: BornInAFord;453120The boost is controlled by the waste-gate and bleed through the boost solenoid (controlled by the eec) and orifice in the turbo waste gate actuator itself. IIRC, auto turbos have the bleed set to allow turbo boost to ~10psi, the manual turbos have a larger orifice drilled in the actuator and allows for ~15psi. Of course, a ~$50 Gillis valve allows you to bypass the solenoid entirely and control your boost level (plus it allows boost to build at lower RPMs, entirely changing the characteristics of the car for the better...)As far as codes, the NATO site has a good rundown on what codes mean for the Programmed Ride Control (PRC) in their faqs. For the eec, the codes may be on cool cats or can be found here by searching, I believe.Good luck,DanielYep you can just jump the boost controller ports together on the turbo with a short hose and get approx 13Lb boost(at least I could on my white Bird)... I've seen automatic PCM work fine in 5spd cars, boost was normal AND I've seen other cars the idle was wonky using using the automatic PCM... Note the only auto PCM I'm experienced with is the 8UA which is what was in most '88... Quote Selected
88 tc help error codes help Reply #14 – January 09, 2016, 11:08:59 PM Ok guys new problem I have a extremely hard break pedal and my abs and break lights are on but I can hear my pump turn on and my relay click any help Quote Selected
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