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| pwn3d_69er |
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hey guys, first time poster here
 I have a 85 XF with EF running gear, (engine, gb, ecu etc) I am having troubles with it running rich and rev hanging if revved past 2k, I have replaced, coilpack, air/coolant temp, new o2, changed TPS, ISC, MAP, Fuel Reg and TB but till no difference, ecu is 4TAB from memory (EF2 manual) and its also got a fresh head 2 weeks old with compression 215psi -/+5psi Last edited by pwn3d_69er on Sun Dec 22, 2013 10:45 pm, edited 1 time in total. |
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| ranga83 |
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have you checked for vacuum leaks?
_________________ ef futura, pacemakers, 2.5inch catback, k&n panel filter and 3.45 lsd. extractors/cat, ticky head, custom cam grind, t5. now onto cosmetics. |
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| El-ghia01 |
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dammm pity u r so far away cause i coulda give it a smoke test,sounds like a pipe has come off or split,if you can smoke it that will be heaps quicker to find the problem
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| pwn3d_69er |
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The only vacuum the engine has is PCV, rear rocker vac, brake booster and fuel reg, all other ports are blocked off. this is the last thing I need to work out before doing more work on the engine *cough* boost
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| ranga83 |
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have you checked those for a vac leak? map sensor lines? intake manifold gasket?
_________________ ef futura, pacemakers, 2.5inch catback, k&n panel filter and 3.45 lsd. extractors/cat, ticky head, custom cam grind, t5. now onto cosmetics. |
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| pwn3d_69er |
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checked them all, and all fine. had it on the dyno a few days ago and did 134.2rwkw but was down at 8/9-1 AFR across the whole rev range.
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| ranga83 |
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stock engine? cam? hows your cat?
_________________ ef futura, pacemakers, 2.5inch catback, k&n panel filter and 3.45 lsd. extractors/cat, ticky head, custom cam grind, t5. now onto cosmetics. |
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| pwn3d_69er |
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bog stock, no cams, 2.5" exhaust, stock ecu, manual. once I find the rev hang problem and running rich then ill be putting a cam etc in
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| ranga83 |
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rev hang could be a fried circuit in the ecu. or vac leak or isc. did you replace isc with a new or used one?
_________________ ef futura, pacemakers, 2.5inch catback, k&n panel filter and 3.45 lsd. extractors/cat, ticky head, custom cam grind, t5. now onto cosmetics. |
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| pwn3d_69er |
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replaced twice with 2 known working ones, and also tb complete with working sensors. tps is set to 0.72 volts at closed throttle but cant remember WOT was around the 4volt mark. have swapped ecus with a good EF XR6 ecu and still the sameproblem. all pins on the ecu are at correct resistance or volts within spec also.
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| ranga83 |
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sounds like a vac leak then. have you sprayed all the lines/intake gasket with aerostart etc?
_________________ ef futura, pacemakers, 2.5inch catback, k&n panel filter and 3.45 lsd. extractors/cat, ticky head, custom cam grind, t5. now onto cosmetics. |
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| pwn3d_69er |
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haven't done that one yet. have done intake gasket when the head was done but it's done this since the motor was first in 5-6 weeks ago.
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| pwn3d_69er |
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well, its been a few months now and the car still has the same problems with a new motor etc, and more ideas? also. say im doing 80kmh in 4th, the car feels as if it is struggling then will take off as it should when I put the foot down, basically same with every gear/speed.
 
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| phongus |
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pwn3d_69er wrote: The only vacuum the engine has is PCV, rear rocker vac, brake booster and fuel reg, all other ports are blocked off. this is the last thing I need to work out before doing more work on the engine *cough* boost ...is there vacuum to the BBM vacuum?
_________________ phongus = Post whore 2006 |
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| pwn3d_69er |
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phongus wrote: pwn3d_69er wrote: The only vacuum the engine has is PCV, rear rocker vac, brake booster and fuel reg, all other ports are blocked off. this is the last thing I need to work out before doing more work on the engine *cough* boost ...is there vacuum to the BBM vacuum? no, as ive said, even with it connected or not, held open/shut with no vacuum, it still does it 
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