Corvette Forum : DigitalCorvettes.com Corvette Forums banner

1 - 9 of 9 Posts

·
Registered
Joined
·
4 Posts
Discussion Starter #1
1989 lt1 starts fine runs good,when warm cranks but no start .shoot a small amount of starting fluid fires right up.fuel pump is new 40lb pressure,new plugs,dist.,oil sending unit,fuel filter ,has 73,000 miles on it setting year and half .set timing @6 degress with el.advance unhooked,reset ecm any ideas?
 

·
Super Moderator
Joined
·
8,483 Posts
without testing you simply guessing
never guess, deal in verified FACTS!
guessing is a waste of time
think logically, isolate and test
yes IM aware some guys would rather dig out their eye with a red hot fork than to read links, but if you take the time to actually research the problem and isolate and test you,ll soon find the answers
well the first thing you do is pull trouble codes
and it would help if you purchased a shop manual.



logically youll want to verify the fuel pressure is consistent and theres spark at the spark plugs, obviously when its starts and runs you have both fuel pressure and ignition spark, and when it won,t start you have lost one of the two.

start by pulling trouble codes, and get a fuel pressure gauge and a multi meter, if you own a vette you NEED that and a timing light and a SHOP MANUAL
Id suspect a defective sensor, and the oil pressure sensor near the base of the distributor is suspect, as is the ignition and all the electrical ignition connections and components, and perhaps the vats system.

use of a shop manual and multi meter can be very helpful
READ THE LINKS AND SUB LINKS
in the long term its going to provide you with a wealth of info youll need badly

http://garage.grumpysperformance.com/index.php?threads/c4-c5-corvette-trouble-codes.2697/

http://garage.grumpysperformance.com/index.php?threads/just-quit-s-then-will-start-right-back-up-and-run.10739/#post-46893

http://garage.grumpysperformance.com/index.php?threads/tpi-fuel-pressure-issue.10385/#post-42943

http://garage.grumpysperformance.com/index.php?threads/trouble-shooting-rebuilding-hei-ignitions.2798/

http://garage.grumpysperformance.com/index.php?threads/vette-sat-unused-for-6-years-now-i-want-to-sell-it.13790/#post-70731

http://garage.grumpysperformance.com/index.php?threads/hard-starting-tpi-crossfire-or-lt1-vette.1401/

http://garage.grumpysperformance.com/index.php?threads/c4-and-camaro-sensor-and-relay-switch-locations-and-info.728/#post-54562

http://garage.grumpysperformance.com/index.php?threads/adjusting-your-tps-and-iac.168/

http://garage.grumpysperformance.com/index.php?threads/handy-fuel-system-trouble-shooting-flow-chart-info.596/

http://garage.grumpysperformance.com/index.php?threads/is-the-vehical-anti-theft-system-vats-making-you-crazy.520/#post-45062

http://garage.grumpysperformance.com/index.php?threads/can-this-cause-a-bad-idle-in-drive.14203/#post-72114

http://garage.grumpysperformance.com/index.php?threads/the-answers-too-those-all-too-common-questions-can-be-found-here.12892/#post-67808
 

·
Registered
1986
Joined
·
75 Posts
without testing you simply guessing
never guess, deal in verified FACTS!
guessing is a waste of time
think logically, isolate and test
yes IM aware some guys would rather dig out their eye with a red hot fork than to read links, but if you take the time to actually research the problem and isolate and test you,ll soon find the answers
well the first thing you do is pull trouble codes
and it would help if you purchased a shop manual.



logically youll want to verify the fuel pressure is consistent and theres spark at the spark plugs, obviously when its starts and runs you have both fuel pressure and ignition spark, and when it won,t start you have lost one of the two.

start by pulling trouble codes, and get a fuel pressure gauge and a multi meter, if you own a vette you NEED that and a timing light and a SHOP MANUAL
Id suspect a defective sensor, and the oil pressure sensor near the base of the distributor is suspect, as is the ignition and all the electrical ignition connections and components, and perhaps the vats system.

use of a shop manual and multi meter can be very helpful
READ THE LINKS AND SUB LINKS
in the long term its going to provide you with a wealth of info youll need badly

http://garage.grumpysperformance.com/index.php?threads/c4-c5-corvette-trouble-codes.2697/

http://garage.grumpysperformance.com/index.php?threads/just-quit-s-then-will-start-right-back-up-and-run.10739/#post-46893

http://garage.grumpysperformance.com/index.php?threads/tpi-fuel-pressure-issue.10385/#post-42943

http://garage.grumpysperformance.com/index.php?threads/trouble-shooting-rebuilding-hei-ignitions.2798/

http://garage.grumpysperformance.com/index.php?threads/vette-sat-unused-for-6-years-now-i-want-to-sell-it.13790/#post-70731

http://garage.grumpysperformance.com/index.php?threads/hard-starting-tpi-crossfire-or-lt1-vette.1401/

http://garage.grumpysperformance.com/index.php?threads/c4-and-camaro-sensor-and-relay-switch-locations-and-info.728/#post-54562

http://garage.grumpysperformance.com/index.php?threads/adjusting-your-tps-and-iac.168/

http://garage.grumpysperformance.com/index.php?threads/handy-fuel-system-trouble-shooting-flow-chart-info.596/

http://garage.grumpysperformance.com/index.php?threads/is-the-vehical-anti-theft-system-vats-making-you-crazy.520/#post-45062

http://garage.grumpysperformance.com/index.php?threads/can-this-cause-a-bad-idle-in-drive.14203/#post-72114

http://garage.grumpysperformance.com/index.php?threads/the-answers-too-those-all-too-common-questions-can-be-found-here.12892/#post-67808
Garage links all dead now?
 

·
Super Moderator
Joined
·
8,483 Posts
if they are they are being blocked by this web site, you have the option of reading them if you also register for free on the originating site
 
1 - 9 of 9 Posts
Top