Sign in to follow this  
Jekruger72

92 Es300 Wont Start, Wiring?

Recommended Posts

So My buddy had his timing belt and idler pulley replaced at some joe schmoe machanic shop. He towed it there and towed it home because he had his own work to do to it. This guy has put one timing belt on the car before, but didn't change out the idler pulley and it froze up. So he replaced it this second time for free.

Anyways, the car is back together but wont start. It's getting spark. But when you crank the key very little gas comes out, but by jumping the 2 plugs in the diagnosis box the fuel pump fires up strong. Another thing is when you turn the key the fuel pump doesn't turn on to prime the car.

Here's where it gets weird. The car has been running for the past 8 months (before the idler pulley froze) with no enigine main relay, which i found out controls the fuel pump along with the open circuit relay.

I haven't tested the open circuit relay yet.

I haven't checked the timing yet thats next, but like i said before he has done it once some what recently so i wold hope he would get it right.

The distributer never came either.

All the plugs are plugged in, I'm gonna double check the vacuum lines tomorrow.

Tried spray starting fluid into the Throttle body and got nothing.

Any other Ideas? I really believe it has something to do with the fuel pump not turning on with the ignition, but I cant figure out why.

Also I've been told of a fuel pump reset switch in the trunk, but we tore it apart and found nothing.

Thanks in advance for any help.

Share this post


Link to post
Share on other sites

Ok well it's not the open circuit relay.

I'f got it tracked down to the AFM, but the AFM is good. Although when I skipp the afm and jump the red and green wire comin into it to the white and black one the fuel pump works.

So i've came to the conclusion that what ever causes that stwich to close and allow power through isn't switching it over. can anyone tell me why?

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
Sign in to follow this