95 bonneville no injectors + extra wires

Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's, Olds 98 91-96, Buick Lesabres and Park Avenue 91-96. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.
Post Reply
DriftKid
LE Member
Posts: 6
Joined: Fri Apr 24, 2015 6:06 pm
Year and Trim: 1995 ssei
Location: Massachusetts

95 bonneville no injectors + extra wires

Post by DriftKid »

Hi

i have replaced the engine on a 95 bonneville.

at this point the engine will run on starting fluid but there is no signal at the injectors
the car has never run before in my posession so there may be other things wrong with it

there are three extra wires that i have not yet figured out where they go

one is coming from the ignition module harness right below the module, black with a white stripe, it has some sort of crimp on which was ripped off

two more are coming out next to the ignition module but they are protruding from an adjacent cable
two white wires crimped (and of course the crimp is ripped from whatever it once was attached to)
two black wires also crimped together

when i attach a lamp between ground and either of the two pairs the auxiliary fan comes on and the fuel pump comes on

at the moment the engine will turn over and run on propane / ether but the injectors do not click
the injectors are getting +12v but the pcm is not grounding them
when i attach the lamp to either of the wire pairs the led i placed on the injectors lights


image of wires
https://drive.google.com/file/d/0B8q3V2 ... sp=sharing


Thanks for the help
-Ryan
1oldman
Certified Bonneville Nut
Certified Bonneville Nut
Posts: 3975
Joined: Tue May 04, 2010 11:21 pm
Year and Trim: 2017 Hyundai Santa Fe Sport
Location: Lone Star State

Re: 95 bonneville no injectors + extra wires

Post by 1oldman »

Those loose wires go to the Ignition Control Module and should be in a connector that goes into the base of the ICM. - BC
In Memory of Brad - 1/21/1977 .. 10/23/2013 ...... Aaron - 1977 .. 2017 .....
2017 Hyundai Santa Fe Sport ..... 1992 Bonneville SSE 1SB 170 HP L27 4T60E retired/sold to MattStrike ..... 2005 Bonneville SE 1SC 205 HP L36 4T65E - retired/salvage yard ..... PBCF user 2321
User avatar
MattStrike
Certified Bonneville Nut
Certified Bonneville Nut
Posts: 4760
Joined: Tue Aug 25, 2009 8:32 pm
Year and Trim: '99 Montana
'04 Dirtymax
'97 Camaro
'92 Trofeo
Location: SE Michigan

Re: 95 bonneville no injectors + extra wires

Post by MattStrike »

Looks like a hacked up remote start install, might need the wire diagrams for the car and the device to sort it out.

The other thing to look into is that the theft deterrent system is working properly, but even then I think it should initially startup.
Boost addict
Image

The Fleet:
'93 SSEi - Twincharged + manual Build thread
'97 Camaro - Top swap
'05 STS - V8, AWD, her DD
'92 Trofeo - Fair weather DD
'99 Montana - top swap 3800
'04 Sierra 2500HD - LLY Duramax

Current project:
Something cool, trust me.

Upcoming projects:
'92 Bonneville SSE
'87 LeSabre T-type
'67 LeSabre

Gone to greener pastures:
'84 Sierra Classic - Twin turbo 3800
'97 LeSabre - Top swap

RIP:
'86 LeSabre - pictures
'93 SE - L67
DriftKid
LE Member
Posts: 6
Joined: Fri Apr 24, 2015 6:06 pm
Year and Trim: 1995 ssei
Location: Massachusetts

Re: 95 bonneville no injectors + extra wires

Post by DriftKid »

I inspected the ICM connector, it was fully populated

after some electrical testing i decided to try hard grounding all 3 (or 5 depending on how you look at it) wires and the car immediatley started.

apparently the bulb was dropping too much voltage to run the injectors but it pointed me in the right direction

its funny how such a popular engine with such a cult following has zero proper schematics on the google

-Ryan
Post Reply