fd problem

zxrazorxz · 01-12-2009, 05:06 PM

so i have a problem with my fd its been ongoing for a month now and i cant seem to figure out whats really going on.
anyway heres the problem when i came to a stop at a stop sign the car stalled on me and would not restart.. it took me about a week to finally get it started again and it ran decent went into boost fine and boost ten pounds so after running it for a while to clear out all the gas and oil from the engine i parked it at home for the night.i went out the next morning to start it..and all i got was cranking it seemed like it wanted to catch and fire a couple times but it didnt.
so i got it towed down to my friends shop and unflooded it again and i made sure i had a blue spark so this time it started but it couldnt idle .. i figured you know.. it just got unflooded so thats normal.. so i drove it around a bit again.. and after about 30 mins of driving i tried puuting it into a little bit of boost.. i couldnt even get to 5 pounds of boost becasue all it did when it entered boost was backfire like crazy.. i took her home and parked her for about an hour and came back outside and i know theres a fuel cut while holding the throttle open all the way so just to make sure i did that to start it and it fired up no problem i went downtown to renew my insurance and came back home and parked it for the night.. came out in the morning and all i got was it cranking and trying to catch but it wont.... i really dont know whats going on.. the guy i bought it from said it wasnt running a fuel filter.. do you think its my injectors?.. or somethien more serious? compression is 90 on all rotor faces by the way..
any help would be awsome!
thanks

David Jerome · 01-12-2009, 07:04 PM

Did you put in new plugs at any point? Cleaning plugs will never give the same results as replacing them with new ones($24.00) at Oreillys and doing the deflood procedure before reinstalling them.

If that isnt the problem it seems like an injector issue, could have one stuck open. I recently fought a similar situation with some injectors I had cleaned and flow tested. But in a known good used set and the car acted 1000 times better and stopped fouling plugs and stopped bucking under decel.

David

zxrazorxz · 01-13-2009, 10:52 AM

thanks dude. i was kinda thinking it was an injector issue but wasnt too sure.
and yes ive put many new sets of plugs in it
well i guess im popping out the injhectors and gettign different ones..
see what happenes i'll keeep you up dated
thanks again

***Herblenny*** · 01-13-2009, 11:22 AM

I agree with David.

I was helping out with a car with bad injector (stuck open) and had similar symptoms. If that FD truly doesn't have a fuel filter, then I also recommend getting one.

cewrx7r1 · 01-14-2009, 08:56 AM

Or maybe bad ignition coils?

zxrazorxz · 01-15-2009, 08:24 AM

i highly doubt its ignition coils becasue of the blue spark im getting from each plug.. but thanks for the idea i appreciate it

Dr-Rotor · 01-21-2009, 12:35 AM

Check your TPS voltage while your at it too.

01-12-2009, 05:06 PM	#1
zxrazorxz The Newbie Join Date: Jan 2009 Location: vancouver island b.c. canada Posts: 6 Rep Power: 0	fd problem so i have a problem with my fd its been ongoing for a month now and i cant seem to figure out whats really going on. anyway heres the problem when i came to a stop at a stop sign the car stalled on me and would not restart.. it took me about a week to finally get it started again and it ran decent went into boost fine and boost ten pounds so after running it for a while to clear out all the gas and oil from the engine i parked it at home for the night.i went out the next morning to start it..and all i got was cranking it seemed like it wanted to catch and fire a couple times but it didnt. so i got it towed down to my friends shop and unflooded it again and i made sure i had a blue spark so this time it started but it couldnt idle .. i figured you know.. it just got unflooded so thats normal.. so i drove it around a bit again.. and after about 30 mins of driving i tried puuting it into a little bit of boost.. i couldnt even get to 5 pounds of boost becasue all it did when it entered boost was backfire like crazy.. i took her home and parked her for about an hour and came back outside and i know theres a fuel cut while holding the throttle open all the way so just to make sure i did that to start it and it fired up no problem i went downtown to renew my insurance and came back home and parked it for the night.. came out in the morning and all i got was it cranking and trying to catch but it wont.... i really dont know whats going on.. the guy i bought it from said it wasnt running a fuel filter.. do you think its my injectors?.. or somethien more serious? compression is 90 on all rotor faces by the way.. any help would be awsome! thanks

01-12-2009, 07:04 PM	#2
David Jerome RCC Contributor Join Date: Jan 2008 Posts: 713 Rep Power: 18	Did you put in new plugs at any point? Cleaning plugs will never give the same results as replacing them with new ones($24.00) at Oreillys and doing the deflood procedure before reinstalling them. If that isnt the problem it seems like an injector issue, could have one stuck open. I recently fought a similar situation with some injectors I had cleaned and flow tested. But in a known good used set and the car acted 1000 times better and stopped fouling plugs and stopped bucking under decel. David __________________ David Jerome Broker for Speed For Sale LLC (David@SpeedForSale.com) (Pre-owned RX7/sports car sales & new parts sales/installs/tuning) PM me about low priced, high quality port work

01-13-2009, 11:22 AM	#4
*Herblenny* Founder/Administrator/Internet Pitbull :) Join Date: Jan 2008 Posts: 644 Rep Power: 10	I agree with David. I was helping out with a car with bad injector (stuck open) and had similar symptoms. If that FD truly doesn't have a fuel filter, then I also recommend getting one. __________________ DGRR 2013 - Year of 13B www.DealsGapRotaryRally.com http://www.facebook.com/Herblenny

01-13-2009, 10:52 AM	#3
zxrazorxz The Newbie Join Date: Jan 2009 Location: vancouver island b.c. canada Posts: 6 Rep Power: 0	thanks dude. i was kinda thinking it was an injector issue but wasnt too sure. and yes ive put many new sets of plugs in it well i guess im popping out the injhectors and gettign different ones.. see what happenes i'll keeep you up dated thanks again

01-14-2009, 08:56 AM	#5
cewrx7r1 The Judge Join Date: Feb 2008 Posts: 196 Rep Power: 18	Or maybe bad ignition coils?

01-15-2009, 08:24 AM	#6
zxrazorxz The Newbie Join Date: Jan 2009 Location: vancouver island b.c. canada Posts: 6 Rep Power: 0	i highly doubt its ignition coils becasue of the blue spark im getting from each plug.. but thanks for the idea i appreciate it

01-21-2009, 12:35 AM	#7
Dr-Rotor Rotary Fan in Training Join Date: Aug 2008 Location: Auckland Posts: 70 Rep Power: 17	Check your TPS voltage while your at it too.