87Fathpinder Posted May 23, 2013 Share Posted May 23, 2013 (edited) I'm getting a code 42 on my 10/86 vg30i. Does anyone know where the fuel temp sensor is? The only information I can find about it says its screwed into the side of the fuel pressure regulator, and it's not... Edited May 23, 2013 by 87Fathpinder Link to comment Share on other sites More sharing options...
JamesRich Posted May 24, 2013 Share Posted May 24, 2013 The codes for the 87 are different than what they are for the 94. A 42 on the 87 is for the throttle sensor circuit. It's the switch on the back side of the throttle body. Here is a scanned page from my 87 factory service manual. It's a crappy scan because the book is old and I don't want to push it down too hard on the scanner. Mine shorted once and was running so rich it looked like a diesel blowing smoke out the tail pipe. James Link to comment Share on other sites More sharing options...
87Fathpinder Posted May 24, 2013 Author Share Posted May 24, 2013 (edited) The codes for the 87 are different than what they are for the 94. A 42 on the 87 is for the throttle sensor circuit. It's the switch on the back side of the throttle body. Here is a scanned page from my 87 factory service manual. It's a crappy scan because the book is old and I don't want to push it down too hard on the scanner. Mine shorted once and was running so rich it looked like a diesel blowing smoke out the tail pipe. James So, do you have the adjustment procedure of the tps in that book? I can't seem to find the output at idle voltage anywhere... Edited May 24, 2013 by 87Fathpinder Link to comment Share on other sites More sharing options...
Leo94 Posted May 24, 2013 Share Posted May 24, 2013 According to the fsm I have which covers the vg30i engine, there is no code 42, code 43 is the tps and the same is said on 88pathoffroad's post The codes for the 87 are different than what they are for the 94. A 42 on the 87 is for the throttle sensor circuit. It's the switch on the back side of the throttle body. Here is a scanned page from my 87 factory service manual. It's a crappy scan because the book is old and I don't want to push it down too hard on the scanner. Mine shorted once and was running so rich it looked like a diesel blowing smoke out the tail pipe. James Link to comment Share on other sites More sharing options...
JamesRich Posted May 25, 2013 Share Posted May 25, 2013 I have a pdf of a 89 hardbody truck I can send you but it's 115 meg. I have sent it to other people with a dropbox acount. All I need is an email to send you an invitation to download it. The code is different in the truck fsm 43 but the procedure to set it is the same. James Link to comment Share on other sites More sharing options...
87Fathpinder Posted May 26, 2013 Author Share Posted May 26, 2013 JamesRich I sent you a p.m. with my email address. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now