Cold Start injector problem, where to look?
Thread Starter
Pro
Joined: Oct 2005
Posts: 721
Likes: 1
From: Charlotte NC, behind someone going 10 under the speed limit
Cold Start injector problem, where to look?
I'm new here, and have an 88 car. It obviously doesn't work, the fuel pressure holds but the car cranks for 10-15 seconds. What usually goes? does the tiny line clog, or the thermoswitch, or the injector itself. Thanks for any input
Team Owner
Joined: Jan 2003
Posts: 20,315
Likes: 245
From: Summerland B.C. Canada
Here's some homework 
http://members.shaw.ca/corvette86/Co...rt%20Valve.pdf
http://members.shaw.ca/corvette86/En...ButWontRun.pdf
http://members.shaw.ca/corvette86/Fu...mDiagnosis.pdf
http://members.shaw.ca/corvette86/Ig...System-EST.pdf
http://members.shaw.ca/corvette86/Co...0View%2086.pdf
http://members.shaw.ca/corvette86/No...it%20Check.pdf
http://members.shaw.ca/corvette86/Co...rt%20Valve.pdf
http://members.shaw.ca/corvette86/En...ButWontRun.pdf
http://members.shaw.ca/corvette86/Fu...mDiagnosis.pdf
http://members.shaw.ca/corvette86/Ig...System-EST.pdf
http://members.shaw.ca/corvette86/Co...0View%2086.pdf
http://members.shaw.ca/corvette86/No...it%20Check.pdf
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Is the cranking extended only on cold starts or on warm starts too?
You can check the resistance across the sensor to see if it is grounded before a cold start and open on a warm start.
If the injector is dirty or clogged you can send it along with the std 8 injectors to Rich at Cruzin Performance (link on my site) to have the set cleaned, flow tested and leak checked.
You can check the resistance across the sensor to see if it is grounded before a cold start and open on a warm start.
If the injector is dirty or clogged you can send it along with the std 8 injectors to Rich at Cruzin Performance (link on my site) to have the set cleaned, flow tested and leak checked.
Thread Starter
Pro
Joined: Oct 2005
Posts: 721
Likes: 1
From: Charlotte NC, behind someone going 10 under the speed limit
It's only on a first cold start it does this. I had to empty the tank of water and dirt after I bought the car since it would run for 30 seconds and die. This may have clogged the injector. with that small line and no return line leaving it i'm guessing it would clog easily. Thanks for the help
Racer
Joined: Apr 2003
Posts: 426
Likes: 0
From: Detroit MI
What will it do if you try back to back cold starts ?
Here is a link to the start sequence http://www.corvettesdownunder.com.au...c4techtips.htm
Look for L98 start sequence down the page.
Here is a link to the start sequence http://www.corvettesdownunder.com.au...c4techtips.htm
Look for L98 start sequence down the page.
