Engine problem, please HELP!!!, Engine only starts sometimes |
Engine problem, please HELP!!!, Engine only starts sometimes |
Oct 1, 2010 - 4:39 PM |
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Moderator Joined Oct 1, '02 From fall river, ma Currently Offline Reputation: 13 (100%) |
QUOTE i would say also reset your ecu, unplug the battery completely (+ and -) and leave it for about 5 minutes. Come back and plug it in a try again. If it starts let it idle for about 5 minutes, then take it for a drive. This will reset your ecu to OEM standards as far as fuel/air mix.. all you really need to do this is pull the EFI fuse in the engine bay fuse box for ~10 seconds. that way, you dont loose your radio presets as well. you need to check mechanical timing. -------------------- Former Team 5SFTE pro member ;)
13.6@108MPH, 5SFTE Powered |
Oct 1, 2010 - 9:42 PM |
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Enthusiast Joined May 30, '10 From PA Currently Offline Reputation: 0 (0%) |
its getting spark and fuel. is it getting air? is there something clogging your intake? no. nothings clogging the intake If you have spark and fuel then you need to check your timing. You might have the distributor installed 180° off. You should also do a compression test. okay. i'll recheck the distributor timing. and my buddy just helped me doing a compression test. it was 170 for all for cylinder -------------------- ...5sFREAK...
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Oct 1, 2010 - 9:49 PM |
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Enthusiast Joined May 30, '10 From PA Currently Offline Reputation: 0 (0%) |
Ok ok ok... When you turn the key...what happens? Does the engine attempt to start or does it just not do anything? When your starting the car do you smell gas like its running rich? How many miles on this engine? Is the check engine light on? When it DID start and run, after it was warm did you still notice any problems? Have you done anything recently before this problem started? i would say also reset your ecu, unplug the battery completely (+ and -) and leave it for about 5 minutes. Come back and plug it in a try again. If it starts let it idle for about 5 minutes, then take it for a drive. This will reset your ecu to OEM standards as far as fuel/air mix.. when i turn the key, yes, it attempts to start. it sounds like it wants to start running, but it never does. and yes, when i start the car i could smell gas like its running rich. my engine has 138,000 on it. no, the check engine light isn't on. when it did start and run, after the engine was warm, there weren't any problems starting the engine again. you could shut it off, and wait like 5-10 mins or so, and it'll start like nothing's wrong with it. no, i bought the car like this. this is why the owner sold it. cause it wouldn't start most of the times. -------------------- ...5sFREAK...
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Oct 2, 2010 - 11:38 PM |
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Enthusiast Joined Aug 12, '07 From Lancaster, Pa Currently Offline Reputation: 35 (100%) |
yea... ok i helped him look at the car. he did a coil and a distributer along with new ignition wires and spark plugs. i did a dry compression test for him and got around 170 psi in all of the four of the cylinders. we also taped on the tank to check for a bad fuel filter and smelled that there was fuel coming to the engine. the car still does not run. i am think is it a timing belt issue... and for the "timing the distributer" idea, is that a necessary thing to do with a 6gc? lets here some input.
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Oct 3, 2010 - 11:22 AM |
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Enthusiast Joined Mar 22, '07 From Houston, TX Currently Offline Reputation: 4 (100%) |
when it doesnt start..
does it get fuel? bridge B+ and FP in the diags box and listen for the fuel pump/fuel flow crank it over about 15 times, pull a spark plug and see if it smells like fuel/is wet. does it spark? -------------------- QUOTE "And, as always, your friendship, help, and dedication to the advancement of Texas Celica dominance is GREATLY appreciated. Thanks bro." -DEATH 1994 GT: V6 swap, 5speed E53 W/ LSD, All Power, now RED 1995 ST: SOLD @273k miles, Auto, all power, CarPC, White 1994 ST: Totaled, 5spd, all power, Red RIP 07/09/09 @ 241,810 1994 Lexus LS400: This is my new DD |
Oct 3, 2010 - 2:43 PM |
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Enthusiast Joined May 30, '10 From PA Currently Offline Reputation: 0 (0%) |
when it doesnt start.. does it get fuel? bridge B+ and FP in the diags box and listen for the fuel pump/fuel flow crank it over about 15 times, pull a spark plug and see if it smells like fuel/is wet. does it spark? yea, when the engine doesn't start, its getting fuel, spark and air compression -------------------- ...5sFREAK...
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Oct 3, 2010 - 8:50 PM |
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Enthusiast Joined Mar 22, '07 From Houston, TX Currently Offline Reputation: 4 (100%) |
its missing one of them.
-------------------- QUOTE "And, as always, your friendship, help, and dedication to the advancement of Texas Celica dominance is GREATLY appreciated. Thanks bro." -DEATH 1994 GT: V6 swap, 5speed E53 W/ LSD, All Power, now RED 1995 ST: SOLD @273k miles, Auto, all power, CarPC, White 1994 ST: Totaled, 5spd, all power, Red RIP 07/09/09 @ 241,810 1994 Lexus LS400: This is my new DD |
Oct 4, 2010 - 2:57 PM |
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Enthusiast Joined Jul 23, '08 From Hawaii Currently Offline Reputation: 6 (100%) |
my 5s is doing almost the same thing, throwing a p1300 for ignition circuit malfunction #1. Just over 150k miles
Starts first thing in the morning when its still cold and runs fine, however, refuses to start in the PM after its hot. replaced the distributor, timing belt, cap/rotor, plugs, wires all within a year. Ignition coils are not avail anywhere (on island) and have to be flown in from state-side. Otherwise, I cleaned all the connectors and checked for bad wires and hoses. plan to reset my ecu and shoot the timing today and see where that takes me. |
Oct 4, 2010 - 6:24 PM |
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Enthusiast Joined Mar 22, '07 From Houston, TX Currently Offline Reputation: 4 (100%) |
either wiring or coil.
-------------------- QUOTE "And, as always, your friendship, help, and dedication to the advancement of Texas Celica dominance is GREATLY appreciated. Thanks bro." -DEATH 1994 GT: V6 swap, 5speed E53 W/ LSD, All Power, now RED 1995 ST: SOLD @273k miles, Auto, all power, CarPC, White 1994 ST: Totaled, 5spd, all power, Red RIP 07/09/09 @ 241,810 1994 Lexus LS400: This is my new DD |
Oct 4, 2010 - 11:50 PM |
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Enthusiast Joined Jul 23, '08 From Hawaii Currently Offline Reputation: 6 (100%) |
pretty certain its the coil.
Timing was was pretty spot on, and after 20 min of failed starts, it finally started and ran normally. |
Oct 5, 2010 - 7:33 AM |
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Enthusiast Joined May 30, '10 From PA Currently Offline Reputation: 0 (0%) |
yeah, i thought that it would have been the coil, but i changed it with a brand new one and it wasn't either.
-------------------- ...5sFREAK...
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Oct 5, 2010 - 1:02 PM |
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Enthusiast Joined Jul 23, '08 From Hawaii Currently Offline Reputation: 6 (100%) |
would you have another ECU to test?
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Oct 5, 2010 - 3:12 PM |
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Enthusiast Joined Dec 19, '07 From tx Currently Offline Reputation: 22 (100%) |
It could still be the ignitor coil wiring. I had the wiring burn up on me a few years back on my '99 GT
check the wires by feel - do they feel crispy and hard? Is the insulation cracking or looking burnt at all? -------------------- ENGINE: '93 RC 3S-GTE/WRC CT-20b [18-20PSI] PERF: TRD/HKS/ARP/NGK/MSD/ACT/Blitz/STRI/APEX'i/TwosRus/GReddy/Magnaflo/KOYO SUSP: Tein/Bilstein/SusTech/ INT: SS-III SEATS/Toyota Hyper Sports EXT: WRC/TRD/404 Its a safety feature so that people like you don't end up killing themselves or everyone around them. Slow down Paul Walker. 6GC Chat - Go there: [url="http://www.griffgirl.com/forum/chat/index.php[/url] |
Oct 6, 2010 - 10:05 PM |
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Enthusiast Joined May 30, '10 From PA Currently Offline Reputation: 0 (0%) |
would you have another ECU to test? yea, i have another same year celica. but its automatic. would that work? -------------------- ...5sFREAK...
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Oct 6, 2010 - 10:07 PM |
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Enthusiast Joined Mar 22, '07 From Houston, TX Currently Offline Reputation: 4 (100%) |
it should
-------------------- QUOTE "And, as always, your friendship, help, and dedication to the advancement of Texas Celica dominance is GREATLY appreciated. Thanks bro." -DEATH 1994 GT: V6 swap, 5speed E53 W/ LSD, All Power, now RED 1995 ST: SOLD @273k miles, Auto, all power, CarPC, White 1994 ST: Totaled, 5spd, all power, Red RIP 07/09/09 @ 241,810 1994 Lexus LS400: This is my new DD |
Oct 7, 2010 - 4:50 PM |
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Enthusiast Joined Dec 19, '07 From tx Currently Offline Reputation: 22 (100%) |
would you have another ECU to test? yea, i have another same year celica. but its automatic. would that work? it should Yes - been there, done that. You just can't swap the oposite way [obviously]. Just be sure the pins are all in the same places - there were some differences over the years. You'll get a code cause of the lack of auto tranny but it's easily cleared and you can defeat that code with some simple wiring. -------------------- ENGINE: '93 RC 3S-GTE/WRC CT-20b [18-20PSI] PERF: TRD/HKS/ARP/NGK/MSD/ACT/Blitz/STRI/APEX'i/TwosRus/GReddy/Magnaflo/KOYO SUSP: Tein/Bilstein/SusTech/ INT: SS-III SEATS/Toyota Hyper Sports EXT: WRC/TRD/404 Its a safety feature so that people like you don't end up killing themselves or everyone around them. Slow down Paul Walker. 6GC Chat - Go there: [url="http://www.griffgirl.com/forum/chat/index.php[/url] |
Oct 24, 2010 - 7:18 PM |
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Enthusiast Joined Jul 23, '08 From Hawaii Currently Offline Reputation: 6 (100%) |
After slaving a new coil, still have the same problem. i'll see about getting an igniter to slave in and unwrap the wires
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Jan 22, 2011 - 8:29 PM |
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Enthusiast Joined Jul 23, '08 From Hawaii Currently Offline Reputation: 6 (100%) |
after poking around and trying different things, found a little oil in the distributor so cleaned it out and replaced the cap/rotor after they looked worn.
changed the spark plugs and wires. Had to replace the battery. car ran fine after all of that for a little while and went back to p1300 no spark a day later. Pulled the lead from the coil and found it only sparks once when I turn the key to <on> and no spark during cranking. The wires look ok, but are pretty stiff. Can't find a way to ohm the igniter itself, and getting to the crank sensor just to check if its dirty is beyond what i'm willing to try next. All of the manuals I could find are more or less pointing to the distributor or ecu. besides replacing those, i'm out of ideas... |
Jan 23, 2011 - 11:29 PM |
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Enthusiast Joined Mar 22, '07 From Houston, TX Currently Offline Reputation: 4 (100%) |
id try the dizzy
-------------------- QUOTE "And, as always, your friendship, help, and dedication to the advancement of Texas Celica dominance is GREATLY appreciated. Thanks bro." -DEATH 1994 GT: V6 swap, 5speed E53 W/ LSD, All Power, now RED 1995 ST: SOLD @273k miles, Auto, all power, CarPC, White 1994 ST: Totaled, 5spd, all power, Red RIP 07/09/09 @ 241,810 1994 Lexus LS400: This is my new DD |
Jan 24, 2011 - 12:45 PM |
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Enthusiast Joined Jul 24, '08 From Canoga Park CA. Currently Offline Reputation: 0 (0%) |
id try the dizzy Replace the cold start sensor it is only $15 and causes the problems you describe. Mine was doing the exact same thing for a year before I solved it. It is on the right next to the heater hose hookup, it is the right hand sensor next to temp gauge sensor. |
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