L98 Distributor Issues
Thread Starter
Instructor
Joined: Mar 2006
Posts: 127
Likes: 0
From: Stockbridge GA
L98 Distributor Issues
Okay here goes. 90 auto. Changed injectors and had an oring spilt. Little fire when the gas ran down the back. Got it out. Now the bad. Some wires cooked. No biggie. Re-wired and things ran okay but car stumbled and spit and sputtered at wide open throttle and higher rpms.
To add to it, the car failed emissions.
I opened the distributor up and the plastic housings for the wiring were all brittle and broken. Tried to clean up the mess and afterwards no start.
Got a new distributor from O'Rielly's. Installed with a new cap, rotor, and coil. Coil is recievign power, but no crank. Not even a little try at it. Engine just turns over.
The wire harness that goes from the 4 pin plug for the ECM to the modual is one of the ones that came apart. I am not sure of the sequence for the wires to the modual. And getting another harness/pigtail takes about 5-7 days for my local Chevy dealership to get. The other parts houses can't get it.
Suggestions? Is this why I can not get spark and crank? Wiring order?
Thanks guys.
To add to it, the car failed emissions.
I opened the distributor up and the plastic housings for the wiring were all brittle and broken. Tried to clean up the mess and afterwards no start.
Got a new distributor from O'Rielly's. Installed with a new cap, rotor, and coil. Coil is recievign power, but no crank. Not even a little try at it. Engine just turns over.
The wire harness that goes from the 4 pin plug for the ECM to the modual is one of the ones that came apart. I am not sure of the sequence for the wires to the modual. And getting another harness/pigtail takes about 5-7 days for my local Chevy dealership to get. The other parts houses can't get it.
Suggestions? Is this why I can not get spark and crank? Wiring order?
Thanks guys.
Le Mans Master
Joined: Aug 2000
Posts: 8,838
Likes: 31
From: Australia
Bad connections /ground between battery and starter.
If your battery is low when cranking it wil take all the power leaving nothing for the spark as well as engine not spining fast enough tp catch
Le Mans Master
Joined: Jul 2007
Posts: 5,043
Likes: 8
From: Tampa Florida
If the wires are mixed up on the ignition module because they were baked and missing insulation then wait for the new pig tail harness to arrive before trouble shooting it further....the ignition miss wire situation could cause your no start condition. Glad to hear the fire was controlable.
Le Mans Master
Joined: Aug 2000
Posts: 8,838
Likes: 31
From: Australia
Is the engine turning over not cranking???
Does it crank over or not? Is what you have a "no fire" situation?
Distributor Connector, TPI Large Cap HEI
Plug and pigtail here $11
http://tpiparts.net/inc/sdetail/1847
Or EFI Connection
www.eficonnection.com (away for this week
Does it crank over or not? Is what you have a "no fire" situation?
Distributor Connector, TPI Large Cap HEI
Plug and pigtail here $11
http://tpiparts.net/inc/sdetail/1847
Or EFI Connection
www.eficonnection.com (away for this week
Race Director
Joined: Feb 1999
Posts: 12,772
Likes: 17
From: Indianapolis IN
I believe, the fuel pump gets a signal through the wires to the distributor as well, so if there is an intermittent connection, the fuel pump could be cutting out.
Correct me if I am wrong, I have not messed with mine for quite some time.
Correct me if I am wrong, I have not messed with mine for quite some time.
Pro
Joined: Mar 2008
Posts: 579
Likes: 2
From: High Bridge New Jersey
Firing order
Okay here goes. 90 auto. Changed injectors and had an oring spilt. Little fire when the gas ran down the back. Got it out. Now the bad. Some wires cooked. No biggie. Re-wired and things ran okay but car stumbled and spit and sputtered at wide open throttle and higher rpms.
To add to it, the car failed emissions.
I opened the distributor up and the plastic housings for the wiring were all brittle and broken. Tried to clean up the mess and afterwards no start.
Got a new distributor from O'Rielly's. Installed with a new cap, rotor, and coil. Coil is recievign power, but no crank. Not even a little try at it. Engine just turns over.
The wire harness that goes from the 4 pin plug for the ECM to the modual is one of the ones that came apart. I am not sure of the sequence for the wires to the modual. And getting another harness/pigtail takes about 5-7 days for my local Chevy dealership to get. The other parts houses can't get it.
Suggestions? Is this why I can not get spark and crank? Wiring order?
Thanks guys.
To add to it, the car failed emissions.
I opened the distributor up and the plastic housings for the wiring were all brittle and broken. Tried to clean up the mess and afterwards no start.
Got a new distributor from O'Rielly's. Installed with a new cap, rotor, and coil. Coil is recievign power, but no crank. Not even a little try at it. Engine just turns over.
The wire harness that goes from the 4 pin plug for the ECM to the modual is one of the ones that came apart. I am not sure of the sequence for the wires to the modual. And getting another harness/pigtail takes about 5-7 days for my local Chevy dealership to get. The other parts houses can't get it.
Suggestions? Is this why I can not get spark and crank? Wiring order?
Thanks guys.
Memorized those when I was like 12 (looooong time ago LOL)
Thread Starter
Instructor
Joined: Mar 2006
Posts: 127
Likes: 0
From: Stockbridge GA
Is the engine turning over not cranking???
Does it crank over or not? Is what you have a "no fire" situation?
Distributor Connector, TPI Large Cap HEI
Plug and pigtail here $11
http://tpiparts.net/inc/sdetail/1847
Or EFI Connection
www.eficonnection.com (away for this week
Does it crank over or not? Is what you have a "no fire" situation?
Distributor Connector, TPI Large Cap HEI
Plug and pigtail here $11
http://tpiparts.net/inc/sdetail/1847
Or EFI Connection
www.eficonnection.com (away for this week
Thanks guys
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Racer
Joined: Jan 2007
Posts: 322
Likes: 0
From: Chapin South Carolina
Did you get the ignition module tested? If I could get my hood open I would go out tonight and get you some pictures. If nothing is posted to help you by this weekend then I will get that darn hood open and get those pictures for you.
