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Cylinder Balance Test does NOT run fr 1-2-3-4-5-6-7-8 as I was told in this forum. Ask me how I know after spending 6 hours to verify it’s not as stated above! I come here for ACCURATE information like everyone else ... and INACCURATE information just doesn’t cut it!!!

Hoping someone can help me here ... does anyone know the sequence the EEC IV uses in the Cylinder Balance Test ... what cylinders injectors are shorted in what order??? I know fr wideband that drivers side is shorted first but do not know in what order computer uses in the actual test? Any...

Looking for a good company that can CHECK and or REPAIR my EEC IV computer to fix anything necessary before installing a Moated Quarter horse. Anyone found or used a service that specializes in being able to check out all operations of computer and repair if necessary ... your suggestion and...

I have a few TFI Ford Distributors that I'd like to rebuild but I cannot seem to find the bushings anywhere or the oil seal that supposedly runs up the shaft. I can find pickups and caps etc. but none of the wear items. Anyone have a source? No sense putting a new pickup in if the bushing...

Been working on my airbag system for a few weeks and found/fixed a few problems. Found an exposed wire, shipped diagnostic monitor off to have it fixed and rebuilt the clockspring (yes, I know its non-serviceable). Anyway, checked whole system out w DMM and everyhhing looks good except I'm...

Been going through my airbag system checking things before installing a new diagnostic monitor. Went to veryuseful.com for the diagram. Anyway, the backup battery harness contains a ground wire though the diagram just shows a ground symbol (which I thought was a case ground) but doesn't show...

I know everyone is ripping these "Induction Sound Tubes" off their 2010-2013 Mustangs ... was wondering if two wonderful people would be kind enough to donate their assemblies (hosing & diaphrams) to me. If ya got one lying around in good condition and are willing to send it to me, kindly send...

1990 Mustang - Supercharged Been troubleshooting an on-going rough running condition open loop ... closed loop is good now after finding a bad (semi-new oxygen sensor) that was bad. Tested everything under the hood and all looks good except possibly BAP sensor. I am familiar with the testing...

1990 Mustang GT - Supercharged w/rebuilt 306 stock E7 heads, forged bottom end, degreed stock cam, Kenne Bell 2.1 Car is running smoother in closed loop now. Each time I restart it after being warm, it runs like crap until it goes back into closed loop. Found a weak HEGO on the drivers side...

After building and installing a forged 306, my old electrical gremlins have shown there head! Two most notably afeter many hours of checking are the TFI ignition module and the two (2) ten (10)salt & pepper shaker connectors. I have repeatedly found intermittents with these two components...

1990 Mustang GT: I have this information for the 1990 Mustang GT Cam stock cam: 1989-1995 5.0L Mustang Roller Cam Part #'s E8ZE-6250-CA or F1ZE-6250-AA Advertised Duration: 276 / 266 Duration @ .050: 214 / 210 Lift w 1.6 rocker: 0.444 / 0.444 Lift w 1.7 rocker: 0.472 / 0.472 Lobe...

1990 Mustang GT pretty much stock other than 7lb. Kenne Bell supercharger kit. I'll try to give the short version. Engine has been running lean (Code 91) and richening mixture. Found a couple of cylinders leaking into cooling system with 100 psi on cylinder. Pulled heads had them resurfaced...

Anyone remember if the throttle body must be removed to remove the passenger side valve cover on a 5.0 Mustang? And, do the hard steel coolant lines that overhang slightly have to be removed also? Thanks, its been awhile since I have done this with the engine fully assembled .. I have to get...

Does anyone have the actual Ford Shop Manual Service Code Definitions for an OBD 1 system? 1990 Mustang GT

1990 Mustang GT with Kenne Bell at 7 psi, Cobra rockers and Venom performance module Summit sells a performance head bolt kit from ARP which I have but wanted to go better. I checked into their Pro line of bolts but do not see a pro head bolt kit for a 1990 E7 ported head. I know that studs...

1990 Mustang GT - Kenne Bell 2.1 with 7 psi boost, 1.7 cobra rockers, venom performance module. Heads are E7 ported Stock head gaskets went south. Measured heads with my striaghtedge and found about .007" warpage ... machinist neasured it and found .005" warpage (I must be off a bit). Both...

1990 Mustang GT - Supercharged Kenne Bell - 2.1 Well, for a while, I have been chasing gremlins in my 1990 Mustang GT. Spent numerous hours and dollars. Recently, I pulled the car off the road for the Winter after not driving it for 2 months. Been doing numerous diagnostic tests but was...

A while back, I copied a diagram off of www.fordfuelinjection.com (which by the way is shut down now by FORD's Lawyers for copyright infringement of protected material supposedly). Anyway, the wiring diagram was specifically labelled for 86-93 Mustangs and showed a relay titled MA/O2 Relay. It...

Correct me if I am wrong. The signal return wire only is grounded when the ke is "on"? With Key "off", should I be able to get an Ohm reading from say TPS ground back to the battery? And if it is only grounded with the Key "on", how can I check the quality of the ground of this SGNRTN wire...

1990 Mustang - Supercharged When I start my car during "Cranking", the Tach needle bounces all around ... once running, it doesn't do it but am wondering if I have some sort of ignition related problem? I don't recall the needle bouncing all the way up to 3,000 rpm and back down repeatedly a...