Stock 5.0 in 86 tbird want to beef it up. Reply #45 – July 21, 2015, 01:58:10 PM Quote from: TheFoeYouKnow;449912You need only measure the volts at the tps green wire with the key on. Look for between .4 and 1.0 with the throttle closed. Probably not the problem, though. I can watch mine bouncing from 15 (my base timing) to 26 or sometimes 28 at idle in gear. I think you're chasing balloons. You did swap the EEC with a HO EEC, right? How does it drive?I got the DA1 which is for a manual I am reading. But I step on the throttle and it won't move. Quote Selected
Stock 5.0 in 86 tbird want to beef it up. Reply #46 – July 21, 2015, 03:47:27 PM So when you blip the throttle the timing doesn't advance with the SPOUT in? Quote Selected
Stock 5.0 in 86 tbird want to beef it up. Reply #47 – July 21, 2015, 03:54:52 PM I will have to check. Didn't think to do that. Quote Selected
Stock 5.0 in 86 tbird want to beef it up. Reply #48 – July 21, 2015, 06:55:07 PM Your throttle isn't responding because you have no tps sensor, or your throttle cable isn't moving. With the key off, set a brick on your gas pedal and verify that the throttle blade is moving. If it is, you need to trouble shoot your tps wiring.Again, verify voltages like the link i posted. Quote Selected
Stock 5.0 in 86 tbird want to beef it up. Reply #49 – July 21, 2015, 07:05:57 PM Cleaned the battery terminals Reset the ecu. And those codes are gone! Quote Selected
Stock 5.0 in 86 tbird want to beef it up. Reply #50 – July 21, 2015, 07:06:46 PM Running on just headers is not really fair for a test drive.... Quote Selected
Stock 5.0 in 86 tbird want to beef it up. Reply #51 – July 21, 2015, 08:27:22 PM So, no o2 sensors? Does it rev freely now? Quote Selected
Stock 5.0 in 86 tbird want to beef it up. Reply #52 – July 21, 2015, 08:59:17 PM No there isn't o2 sensors hooked up. Rev freely? Quote Selected
Stock 5.0 in 86 tbird want to beef it up. Reply #53 – July 21, 2015, 09:58:34 PM I realized i got the spark plugs for E6 heads not the E7s. There is a difference between them. Spark plugs 3,4,5, and 7 were black. Coincidentally these are the spark plugs that you switch when doing an HO conversion. The others were normal.The correct spark plugs and wires helped with throttled firing a little. Couldn't take it out for a test spin though. Will update tomorrow when I drive it. Quote Selected
Stock 5.0 in 86 tbird want to beef it up. Reply #54 – July 22, 2015, 07:32:39 AM Do you guys think it might require the original firing order? The cam is out of an 86 mustang gt lx and it has a da1 eec.Running rich on 3,4,5,7 Quote Selected
Stock 5.0 in 86 tbird want to beef it up. Reply #55 – July 22, 2015, 08:17:14 AM Without o2 sensors the car is going to run funny. Your probably not even getting open loop, which means the car is running in a fail safe mode. Its called limp mode, as it is just supposed to run well enough to not hurt the engine until it can get serviced.Finish hooking everything up, clear codes and make sure the car is doing what its supposed to. Quote Selected
Stock 5.0 in 86 tbird want to beef it up. Reply #56 – July 22, 2015, 10:15:19 AM Quote from: Haystack;449938Without o2 sensors the car is going to run funny. Your probably not even getting open loop, which means the car is running in a fail safe mode. Its called limp mode, as it is just supposed to run well enough to not hurt the engine until it can get serviced.Finish hooking everything up, clear codes and make sure the car is doing what its supposed to.Without o2 it'll never be in closed loop(duh), but the lookup tables in the ECM will sub a workable value and the car will run approx as it should... Gas mileage will be decreased by probably three mpg... If o2 are removed/failed after a normal operation, as long as KAM is still powered, the ECM will use the last working values reported by o2... Quote Selected
Stock 5.0 in 86 tbird want to beef it up. Reply #57 – July 22, 2015, 11:27:10 AM Problem with that is that he hasn't established any KAM values yet. There are no adaptives to lean on at this point. He needs everything hooked up. He probably needs extensions for the hegos to reach. Quote Selected
Stock 5.0 in 86 tbird want to beef it up. Reply #58 – July 22, 2015, 05:45:23 PM If you unhook the map sensor vacuum line and drive it, you will stain the ground black and get about 6mpg. It also prevents certain codes from being displayed koer because its in limp mode. Quote Selected
Stock 5.0 in 86 tbird want to beef it up. Reply #59 – July 22, 2015, 11:20:11 PM Yes MAP is a absolute requirement, engine load is calculated by amount of vacuum applied... With no vac, ECM calculates for WOT... Converters will glow cherry red... In order of importance TPS isn't far behind, but I've never seen anything anywhere near catastrophic such as MAP can produce(BTW a stuck open VAM on a Turbo Coupe can produce similar results of disconnected MAP) ... TPS failed on my '93 Lightning(they are SD), idled fine but had about as much power as a 3.8 missing half the plug wires... Quote Selected
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