How to test the Ignition Module

How to test the Ignition Module

Postby ccookie66 [OP] » July 11th 2012, 1:55pm

I have determined that the problem in my van is electrical. I'm thinking that the Ignition Module had failed. Is there any way to test it? I don't have any meter things...all I have is a test light.
Image
The Astro is always a turn key away from adventure.
Original Poster [OP]
User avatar
ccookie66
Firing on 5 Cylinders (L2)
Firing on 5 Cylinders (L2)
Years of Membership: ccookie66 has been a member for 2 full yearsccookie66 has been a member for 2 full years
Posts: 1503
Topics: 129
Images: 38
Joined: February 2012
Location: Monmouth, Maine
Gender: Male
Year: 1993
Van Make/Model: Chevrolet Astro
Extra Info: V6 4.3 AWD EXT CPI

  • Similar topics
    Replies
    Views
    Author

Re: How to test the Ignition Module

Postby chevymaherchevymaher is online! » July 11th 2012, 1:57pm

Take it to the auto parts place. They can test it.
User avatar
chevymaherchevymaher is online!
Team Leader
Team Leader
Firing on 8 Cylinders (L7)
Firing on 8 Cylinders (L7)
Years of Membership: chevymaher has been a member for 3 full yearschevymaher has been a member for 3 full yearschevymaher has been a member for 3 full years
Posts: 9098
Topics: 61
Images: 93
Joined: November 2010
Gender: Male
Alias (AKA): chevymaher
Year: 1994
Van Make/Model: GMC Safari
Extra Info: SLE RWD cam ported

Re: How to test the Ignition Module

Postby ccookie66 [OP] » July 11th 2012, 7:27pm

Thanks for the reply. I don't think it is bad, because the van will fire when I spray gas directly into the intake. So if it was bad, it would not fire at all.
Image
The Astro is always a turn key away from adventure.
Original Poster [OP]
User avatar
ccookie66
Firing on 5 Cylinders (L2)
Firing on 5 Cylinders (L2)
Years of Membership: ccookie66 has been a member for 2 full yearsccookie66 has been a member for 2 full years
Posts: 1503
Topics: 129
Images: 38
Joined: February 2012
Location: Monmouth, Maine
Gender: Male
Year: 1993
Van Make/Model: Chevrolet Astro
Extra Info: V6 4.3 AWD EXT CPI

Re: How to test the Ignition Module

Postby Matrixx » July 13th 2012, 10:22am

Hi ccookie66

You are correct, it wouldn't fire with a bad module spraying gas into it. Check the fuel supply (plugged filter - bad (or plugged injectors) or a bad pump) would be the first places I would check from what you have just posted.

Keep us updated, thanks ccookie66.:)
96-GMC Safari - Rwd - Original Transmission - Exhaust - Air Cared - 3.73 Limited Slip Rear End - Motor Replaced - 91 octane (Chevron) for the last 14 years - MFI Upgrade - 640,000 Kilometers.
User avatar
Matrixx
AstroSafari Pioneer
AstroSafari Pioneer
Firing on 6 Cylinders (L3)
Firing on 6 Cylinders (L3)
Years of Membership: Matrixx has been a member for 6 full yearsMatrixx has been a member for 6 full yearsMatrixx has been a member for 6 full yearsMatrixx has been a member for 6 full yearsMatrixx has been a member for 6 full yearsMatrixx has been a member for 6 full years
Posts: 2640
Topics: 14
Joined: January 2008

Re: How to test the Ignition Module

Postby ccookie66 [OP] » July 13th 2012, 12:46pm

Matrixx wrote:Hi ccookie66

You are correct, it wouldn't fire with a bad module spraying gas into it. Check the fuel supply (plugged filter - bad (or plugged injectors) or a bad pump) would be the first places I would check from what you have just posted.

Keep us updated, thanks ccookie66.:)

Yup, I actually think its the injectors, because I have a brand new fuel pump on it, and a brand new fuel filter, both from NAPA. I'm going to change the lines (They are very rusted, and there are sliced parts on it, where after market rubber hose replace the metal lines) and then check the fuel pressure. If it has the right pressure, then I'm going to pull the injectors and check them out. My question is, how do you know the injectors are bad? I heard one way is when they spray, it will just dribble out instead of a cone shaped spray.
Image
The Astro is always a turn key away from adventure.
Original Poster [OP]
User avatar
ccookie66
Firing on 5 Cylinders (L2)
Firing on 5 Cylinders (L2)
Years of Membership: ccookie66 has been a member for 2 full yearsccookie66 has been a member for 2 full years
Posts: 1503
Topics: 129
Images: 38
Joined: February 2012
Location: Monmouth, Maine
Gender: Male
Year: 1993
Van Make/Model: Chevrolet Astro
Extra Info: V6 4.3 AWD EXT CPI

Re: How to test the Ignition Module

Postby paintdrying » July 13th 2012, 12:57pm

If they are dribbling then that is it for them. Rebuilt injectors are not to expensive. You want a nice cone pattern spray. Injectors can screw up in other ways that are not so noticable, such as not spraying the proper amount at the proper fuel pressure.
I replaced a dribbling injector with one from a jy. Did you say something about blowing a fuse for the fuel pump? Also, how many pounds of pressure on that pump?
1999 chevy astro van awd ls 108,000 miles
parts van 2000 astro rwd 279,000 miles
User avatar
paintdrying
Firing on 3 Cylinders (L2)
Firing on 3 Cylinders (L2)
Years of Membership: paintdrying has been a member for 3 full yearspaintdrying has been a member for 3 full yearspaintdrying has been a member for 3 full years
Posts: 1384
Topics: 94
Images: 1
Joined: November 2010
Location: vermont
Gender: Male
Van Make/Model: Chevrolet Astro
Extra Info: 108 000

Re: How to test the Ignition Module

Postby ccookie66 [OP] » July 13th 2012, 1:00pm

paintdrying wrote:If they are dribbling then that is it for them. Rebuilt injectors are not to expensive. You want a nice cone pattern spray. Injectors can screw up in other ways that are not so noticable, such as not spraying the proper amount at the proper fuel pressure.
I replaced a dribbling injector with one from a jy. Did you say something about blowing a fuse for the fuel pump? Also, how many pounds of pressure on that pump?

Yeah, fuse ECU B I think. (Not sure if that one is for the fuel pump, but after it blew I had to hot wire the relay to get the pump to work) I'm not sure how many pounds of pressure I have, still waiting for the gauge to arrive.
Image
The Astro is always a turn key away from adventure.
Original Poster [OP]
User avatar
ccookie66
Firing on 5 Cylinders (L2)
Firing on 5 Cylinders (L2)
Years of Membership: ccookie66 has been a member for 2 full yearsccookie66 has been a member for 2 full years
Posts: 1503
Topics: 129
Images: 38
Joined: February 2012
Location: Monmouth, Maine
Gender: Male
Year: 1993
Van Make/Model: Chevrolet Astro
Extra Info: V6 4.3 AWD EXT CPI


 
  • Related topics
    Replies
    Views
    Last post

Return to Engines

It is currently October 25th 2014, 4:26am

Engines Forum
Engine Repairs, Modifications, Diagnostics, Tuning, Upgrading, Questions.
Moderator: chevy57bert
To create a new topic in Engines, click this button:
Previous topic Next topic
Recent Image Attachments
Attached by:
kirklaut
in Engines
Views: 28
Comments: 1
Date: Today
Time: 2:06am
» Read last comment
Attached by:
Attached by: markmitch
markmitch
in Engines
Views: 137
Comments: 3
Date: Oct 23 '14
Time: 12:53am
» Read last comment
Attached by:
kirklaut
in Engines
Views: 131
Comments: 2
Date: Oct 22 '14
Time: 1:00am
» Read last comment
Attached by:
Attached by: chevymaher
chevymaherchevymaher is online!
in Engines
Views: 509
Comments: 8
Date: Oct 10 '14
Time: 10:16pm
» Read last comment
Attached by:
smyrna5
in Engines
Views: 2479
Comments: 25
Date: Oct 08 '14
Time: 5:30am
» Read last comment
Sponsors
 

Who is online

Users browsing this forum: Exabot [Bot], Yahoo [Bot] and 20 guests