HELP! 87T2 idles but cuts off when accelerated
 

I have an 87t2 w/safc 3 inch exhausthks fcd..and a few other minor up grades. My problem is yesterday when going to my friends house my car just shut off!!! then when tried to start back the battery was deaed!!! luckily it was in front of my friends house and he jumped the car it idles fine the fluids are in check on my safc the afl is 1.5ish around idle it idles at around 1300 using 14% of my throttle I know Im running rich due to my o2 sensor being rigged but this came out of no where. when i gat in and put it in gear and begin to accelerate it like "hiccups then dies sometimes turning back on. its almost like when you take the airbox of the vehicle or disconnect the mass airflow sensor and you have to hold the throttlejust to accelerate or else it will die. the same happens to me and i checked the intake and it looks ok. but what i dont get is how did the battery just totally die!!and it was a good battery!!! also i smelled like a burning plastic when it happened though im not sure! I really need help guys I JUST registered the car last Tuesday. I think maybe its a sensor that went , or maybe I fried something ? But it astarts right up just like before and idles all the same just like before. HELP PLEASE!!!!-Erik Montalvo

check your alternator and see if it is charging

the alternator is fine its something else that caused the car to just shut off. thanks though for the feed back. anyone else. I need this car !!! this weekend is mazda day in orlando!!!-Erik Montalvo

The same thing just happened to me, I thought it was a sensor too
I chased my tail for 2 weeks until I did a compression test and found out I
droped an apex seal.


check this web site it helped me alot

http://www.aaroncake.net/rx-7/blown.htm

thanks rx jim but then why would my engine run the same as before if it was blown? and onlydie when i had in geaar and accelerated? i had the engine on and in neutral revving it to 3-4 grand and it sounded ok. just like before. tomorrow i will be towing it home so ill do the test of takingout the plugs since i dont have a compression tester. thanks for the 411-Erik

come on fellas i know someone has to have the same problem 2 help me!

if u smelled something burning id say lookin in burnt wiring, thats just common sense in my train of thought...if youre not sure, then start simple always...

i had something like this.. i caught a tiny harness fire that sperated n melted a few wires out of nowhere and it whiped out my 2ndaries on the way home from work...lol.. if u smelt burnt plastic check all the places where plastic is.. its prolly gonna be the plastic wire loom that goes over the wires or hopefully not the harness

Im almost sure its electrical... today i started it and tried driving it and this time when it would cut off the dash lights went out and when it dies and DOESNT start back up by itself i smell something dont know if its burned something or ???? I really need to get this resolved dont want to take it somewhere. i still havent even had time to check it out in the day cuz i wont .....im pissed.(almost)-erik