PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Injector Control Circuit problems

Thread Tools
 
Search this Thread
 
Old Jul 7, 2005 | 11:46 PM
  #1  
The Sad's Avatar
Thread Starter
12 Second Club
iTrader: (8)
 
Joined: Feb 2004
Posts: 580
Likes: 0
Default Injector Control Circuit problems

I have tried elsewhere but couldn't get any help, so I thought I'd try the wealth of knowledge here.

My 2000 Jeep Grand Cherokee is throwing all the following codes (used to be only half the cyl, now all).
It won't throw them on 91 octane (only needs 87), but idle is still erratic.
I have tried injector cleaner but it doesn't help.

DTC P0201 Injector 1 Control Circuit
DTC P0202 Injector 2 Control Circuit
DTC P0203 Injector 3 Control Circuit
DTC P0204 Injector 4 Control Circuit
DTC P0205 Injector 5 Control Circuit
DTC P0206 Injector 6 Control Circuit
DTC P0207 Injector 7 Control Circuit
DTC P0208 Injector 8 Control Circuit

Any ideas what I can do? Thanks for your help.
Reply
Old Jul 8, 2005 | 01:28 PM
  #2  
technical's Avatar
TECH Addict
20 Year Member
 
Joined: Mar 2004
Posts: 2,336
Likes: 0
From: Fat Chance Hotel
Default

It could be the PCM itself. I don't know the architecture of the Jeep modules, but usually there is an injector driver section that might be burnt.

The other option is an open in the wires/circuit itself. You would throw a similar code for eg if you unplugged an injector. So check the harness for any damage and if possible check for continuity on the wires themselves. I wouldn't think 8 injectors would go bad in 5 years, but stranger things have happened.
Reply
Old Jul 8, 2005 | 07:17 PM
  #3  
AVB's Avatar
AVB
Launching!
iTrader: (9)
 
Joined: Jan 2004
Posts: 216
Likes: 0
From: Santa Clara, CA
Default

possibly a ground issue..
Reply




All times are GMT -5. The time now is 09:36 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE