idle problem and hot start too

Rotary#10 · 01-16-2009, 07:21 PM

mmm
after rewiring the fuel pump relay to with to the fuel pump connector.. my car runs great, it seems to have a lil more power in the higher rpms. but there is a catch. coming off the freeway from from 2.5k rpms to idle it doesn't return at times it'll cut off!

*lol (oh and just to add to that my brake switch crapped out on me too. i bought another one from mazdatrix.)

and then there is the hot start problem... run the car drive it here and there and its at operating temp. turn it off and it floods. about one or 2 tries it'll catch. i do crank it for more than 10 seconds to get it started.... be here is another thing.. i went to my friends house and about an hour later i came out and it won't start so mmm i thought it was flooded, pulled the egi fuse and crank for about 5 secs, 3 times and then put it back and the car came on... and i had to hold the throttle down to keep it going. and the idle i know of course is going to be crap.. and it idles like crap.. i drive more briskly shifting around 2.5k or higher. my idle is currently not good its jumpy around 750 rpms and less at times.. almost like its going to die...

im begining to think.
-too much fuel from new pump ?
-timing is off?
-tps needs to be readjusted?
-serivce injectors i know i have been slackin on this one.

im think im going to start to do what iliketoeatricers from barotary.com tould me about holding the throttle at 3k and then cut the car off. to reduce chances of flooding. tell me what ya'll think. and thank you for the imput.

lcrotaryracer · 01-17-2009, 11:52 PM

you may have a vacum leak. mine dose the same thang. the it fuel cut at high rpm.
the maf dos not that it getting more air but in the fact that it is flooding some one here may know something i cant fine.

Rotary#10 · 01-19-2009, 01:20 AM

mmm huh your right icrotaryracer ..i had the idle screw out too far. the idle is solid now just have to find out why im running rich and there is a dusty color ash? in my exhaust tips.

vex · 01-19-2009, 01:29 AM

Quote:

Originally Posted by Rotary#10

mmm huh your right icrotaryracer ..i had the idle screw out too far. the idle is solid now just have to find out why im running rich and there is a dusty color ash? in my exhaust tips.

That's called running rich; aka soot.

Rotary#10 · 01-19-2009, 02:40 PM

welp there goes the cat... and ladies and gentlemen time to buy or make an exhaust system for my 7 thats streetable and doesn't have cats. and keep this one for smog time..

StarSpeedRacing · 01-20-2009, 08:47 PM

revving to 3k rpm and shutting it off does not do anything except just that.
It does not lower the puel pressure in the lines because right when you turn the key to the off position, the injectors do not spray fuel anymore.

Hello Roto · 01-21-2009, 09:54 AM

^ true unless the injectors are old and leaking

87turbo_turtle · 01-21-2009, 10:01 AM

yeah or you got carbon build up and you found a way to ummm lossen up some...like my lovely spose like to do...lol....just let me drive the car for a day....hehehe.....

01-17-2009, 11:52 PM	#2
lcrotaryracer Rotary Fan in Training Join Date: Oct 2008 Location: lenoir city, TN iTrader: (0) Posts: 63 Rep Power: 17	you may have a vacum leak. mine dose the same thang. the it fuel cut at high rpm. the maf dos not that it getting more air but in the fact that it is flooding some one here may know something i cant fine. __________________ you can always have fun in a rx7

01-19-2009, 01:20 AM	#3
Rotary#10 Rotorhead Join Date: Sep 2008 Location: "the town " Oakland iTrader: (1) Posts: 219 Rep Power: 17	mmm huh your right icrotaryracer ..i had the idle screw out too far. the idle is solid now just have to find out why im running rich and there is a dusty color ash? in my exhaust tips. __________________ Currently running: 90 GTUs converted to S5 TurboII. Track car. 90 N/A GTUs.. Running project car 89 N/A GTUs in Black #2 10/6/18 Blown coolant seal undergoing rebuild and restomod.

01-19-2009, 02:40 PM	#5
Rotary#10 Rotorhead Join Date: Sep 2008 Location: "the town " Oakland iTrader: (1) Posts: 219 Rep Power: 17	welp there goes the cat... and ladies and gentlemen time to buy or make an exhaust system for my 7 thats streetable and doesn't have cats. and keep this one for smog time.. __________________ Currently running: 90 GTUs converted to S5 TurboII. Track car. 90 N/A GTUs.. Running project car 89 N/A GTUs in Black #2 10/6/18 Blown coolant seal undergoing rebuild and restomod.

01-20-2009, 08:47 PM	#6
StarSpeedRacing StarSpeedRacing Join Date: Dec 2008 Location: California iTrader: (0) Posts: 34 Rep Power: 0	revving to 3k rpm and shutting it off does not do anything except just that. It does not lower the puel pressure in the lines because right when you turn the key to the off position, the injectors do not spray fuel anymore. __________________ StarSpeedRacing Parts Development & Discount Parts! GB:FD Intercooler Kit GB:Stainless Non Turbo Headers Contact: StarSpeedRacing@gmail.com

01-21-2009, 09:54 AM	#7
Hello Roto El Mas Tiguere..DR Join Date: Jan 2009 Location: Big Red Country iTrader: (0) Posts: 21 Rep Power: 0	^ true unless the injectors are old and leaking __________________ DD: 91' Slow EF'in Hatchback Project: 87' TII Rebuild (Build Thread Pending)

01-16-2009, 07:21 PM	#1
Rotary#10 Rotorhead Join Date: Sep 2008 Location: "the town " Oakland iTrader: (1) Posts: 219 Rep Power: 17	idle problem and hot start too mmm after rewiring the fuel pump relay to with to the fuel pump connector.. my car runs great, it seems to have a lil more power in the higher rpms. but there is a catch. coming off the freeway from from 2.5k rpms to idle it doesn't return at times it'll cut off! *lol (oh and just to add to that my brake switch crapped out on me too. i bought another one from mazdatrix.) and then there is the hot start problem... run the car drive it here and there and its at operating temp. turn it off and it floods. about one or 2 tries it'll catch. i do crank it for more than 10 seconds to get it started.... be here is another thing.. i went to my friends house and about an hour later i came out and it won't start so mmm i thought it was flooded, pulled the egi fuse and crank for about 5 secs, 3 times and then put it back and the car came on... and i had to hold the throttle down to keep it going. and the idle i know of course is going to be crap.. and it idles like crap.. i drive more briskly shifting around 2.5k or higher. my idle is currently not good its jumpy around 750 rpms and less at times.. almost like its going to die... im begining to think. -too much fuel from new pump ? -timing is off? -tps needs to be readjusted? -serivce injectors i know i have been slackin on this one. im think im going to start to do what iliketoeatricers from barotary.com tould me about holding the throttle at 3k and then cut the car off. to reduce chances of flooding. tell me what ya'll think. and thank you for the imput. __________________ Currently running: 90 GTUs converted to S5 TurboII. Track car. 90 N/A GTUs.. Running project car 89 N/A GTUs in Black #2 10/6/18 Blown coolant seal undergoing rebuild and restomod.

01-21-2009, 10:01 AM	#8
87turbo_turtle Rotary Chic Join Date: May 2008 Location: New Holland, SC iTrader: (0) Posts: 232 Rep Power: 17	yeah or you got carbon build up and you found a way to ummm lossen up some...like my lovely spose like to do...lol....just let me drive the car for a day....hehehe..... __________________ Turtle Yes I am a girl and I will kick your butt. Prove yourself.