Issues!
OK This is the 2nd time i have posted this. i need help with my fc. it has high rpm break up bad. at about 4-6 it spits and sputters then at 6500-7k it acts normal. and at night it does this with the headlight on at around 3400-6k. i turn them off and it acts the same as above. what the hell it going on here? is it the coils, Alt some ground not connected?
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Have you checked your spark plugs? Measured the alternator output?
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spark plugs+wires are new would that be the issue? ill check that today and let you know
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Check your Grounds.
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Used Arroncakes guide for grounds all of them are good solid grounds and all hooked up. i wasnt able to check the Alt output my meter was not in my tool boox where i left it i will check that tmr.
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ok i checked all grounds checked the Alternator output its right around 13.8 with the headlights on and 13.4 w/o. could this be bad timing or a bad coil? could the headlights be taking all the output from the coils and causing this? let me know
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OK i Checked the Ohm resistance in Both the coils and they are to high they should be .5-1.0 ohms. Is that bad? would That be causing the issue?
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Did you check the grounding at the boost sensor?
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boost sensor? mines a N/A
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the ecu ground. do i have to remove the upper intake to get to it or can things be moved around slightly? if i need to move them around am i going to need a gasket set?
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Look in the FSM, it tells you where to check.
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ok this is crap! i fixed all the ground including the ecu ground with new wires and connectors. It went away for 1 day now its back! should i replace that batt cables? they are the ones you get at autozone as a temp cable connector.
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Originally Posted by darkblaze
(Post 10042091)
boost sensor? mines a N/A
Originally Posted by darkblaze
(Post 10045590)
ok this is crap! i fixed all the ground including the ecu ground with new wires and connectors. It went away for 1 day now its back! should i replace that batt cables? they are the ones you get at autozone as a temp cable connector.
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Originally Posted by Aaron Cake
(Post 10047112)
So did you check the ground at the boost sensor?
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oh that one. i replaced that ground with a new wire and connector from Mazda. as for the battery cables i am going to replace those tomorrow as i dont have any money right now till then.
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Originally Posted by LunchboxCritter
(Post 10047125)
I believe he is talking about the pressure sensor, located on the passenger side shock tower, behind the airbox, and right beside your 2 green plugs.
In the FSM, Mazda refers to the NA map sensor as a boost sensor, and the TII MAP sensor as a pressure sensor. Go figure. Using the proper lingo makes it easy to find in the FSM. |
ok ive replaced all grounds had the alt tested battery is new. could this be a secondary injector problem?
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ok i figured it out !! the person who had the engine pulled and rebuilt put the MAIN BATTERY GROUND DIRECTLY TO THE BLOCK AND NOT THE STARTER BODY BOLT! i moved the wire to the starter and it went the F***** away! gone works great! now just have to get the trans checked! hear clunking when i change gears! im thinking that is a trans mount or a rear end mount.
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For the transmission, I would start by checking the oil and check the records to see if the correct oil was used; both misusages of the oil can cause noise.
If those checks deem no solution, it can be a warn bearing; throughout (you may have constant noise) or polite bearing (it will not go into gear), wear of the countershaft gear, surface gears wear or damaged teeth. |
Putting the ground on the block should not be an issue. It was more likely just a poor/dirty location that was chosen.
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I took it in to my cousins Trans shop on monday. And found the read end front mount broken which is the clunking and found i need to have the drive shaft rebuilt or replaced the u joints are worn.
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