engine power loss on startup

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Oct 21, 2011 | 11:32 AM

#61

Slick761

CF Veteran

Joined: Jun 2011

Posts: 2,858

Likes: 1

From: Nor-Cal

Year: 1990

Model: Cherokee

Engine: The venerable 4.0

Quote:

Originally Posted by cruiser54

Nope. C101 is only on 87 and 88 and sets ABOVE the booster. The one you're talking about really does not have an effect on the fuel injection system like a C101.

Did you ever check your sensor ground circuit resistance as described in my instructions?

Ya I don't remember the reading but it was pretty good. My meter broke and I just got another. I'm going to test everything today. Where did you add a ground from and to?

Oct 21, 2011 | 11:37 AM

#62

cruiser54

::CF Moderator::

Joined: Aug 2011

Posts: 43,971

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From: Prescott, Az

Year: 1990

Model: Cherokee (XJ)

Engine: 4.0

Quote:

Originally Posted by Slick761

Ya I don't remember the reading but it was pretty good. My meter broke and I just got another. I'm going to test everything today. Where did you add a ground from and to?

Ground for what? Less than 1 ohm resistance in that circuit, as checked at the TPS brown with white tracer wire, is good.

Oct 21, 2011 | 11:48 AM

#63

Slick761

CF Veteran

Joined: Jun 2011

Posts: 2,858

Likes: 1

From: Nor-Cal

Year: 1990

Model: Cherokee

Engine: The venerable 4.0

Ok where am I wiggling the harness for tps power and I think I had like 1.2 ohms

Oct 21, 2011 | 08:47 PM

#64

cruiser54

::CF Moderator::

Joined: Aug 2011

Posts: 43,971

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From: Prescott, Az

Year: 1990

Model: Cherokee (XJ)

Engine: 4.0

1.2 is a bit high. Wiggle the harness where it runs parallel to the valve cover and then over near the MAP on the firewall.

Oct 21, 2011 | 08:58 PM

#65

Slick761

CF Veteran

Joined: Jun 2011

Posts: 2,858

Likes: 1

From: Nor-Cal

Year: 1990

Model: Cherokee

Engine: The venerable 4.0

And where are the crimp connections

Oct 21, 2011 | 09:01 PM

#66

cruiser54

::CF Moderator::

Joined: Aug 2011

Posts: 43,971

Likes: 1,579

From: Prescott, Az

Year: 1990

Model: Cherokee (XJ)

Engine: 4.0

Quote:

Originally Posted by Slick761

And where are the crimp connections

They're in the harnesses you're gonna be wiggling, of course.

We haven't gotten to that yet. I have a write-up on that when you're ready. Do your homework first.

Can you solder?

Last edited by cruiser54; Oct 22, 2011 at 08:18 AM. Reason: info