Imo000

Not all the realys are the same. Even if they look a like, internally some are very different. Make sure you swap it out with a proper one. If you can't find one, put in a jumper.

88porsche928

also i do have a cheap multimeter "looking for battiers for it" so let me know if you guys have an idea

88porsche928

correction, their is spark it just was shocking the car body

88porsche928

alright i tried changing around some relays with the correct p/n for the relays, the spark plugs spark, what how do I know the fuel pump it working?

davek9

Quite right Jim, and here is an even less expensive example of a Burned Fuse (Fuel Pump / Ox sensor) caused by a corroded CE connection, that stopped a ’91 just after its owned turned it off in a parking lot.

Just say’n we needed more info on the car .

88porsche928

its a 1989 porsche 928 with automatic transmission, its just recieved an engine transplant installed by a porsche mechanic. what connectors should i check? i changed out almost all the fuses i dont see any that are burned up

88porsche928

davek9 what should i check

davek9

Check your fuses (pull each one out, then put it back), check for correct size while you are doing them.
Do you smell any fuel?
Was that spark you removed wet?
(still trying to figure out how you removed one and posted in less than 5 minutes (scraching head)).

Are you sure the cams are moving when you crank the engine, look into the vent holes on the top belt covers (remove air intake tubes).

Good Luck

88porsche928

i pulled out a spark plug and it had a little oil on the threads, but it still sparked, i dont think i smell fuel how do i check if the fuel pump is working

davek9

Did you pull each Fuse and check them, sorry I may have missed that?

88porsche928

i checked the fuses none look burned out, i actually repalced close to all of them a couple of days ago and the car was running

jayc67

Here is a link to a page showing how to jump the fuel pump relay.

This will cause the fuel pump to run constantly. Removes the relay from the picture anyway. You should be able to hear the fuel pump running (if it is).

http://members.rennlist.com/v1uhoh/jumping.htm

Go ahead and make the jumper as shown and stick it in a bag somewhere with fuses and spare relays. Someday you will be glad you had it

88porsche928

so after making that my car will run??? and if it does run all i need to do for a real repair is buy a replacement relay? i will go to autozone when i get a chance to try and make this

jayc67

Well, that's one of many things that may be wrong.

What it will do is remove the relay from the list of possibilities.

If it starts, the relay was the problem. If not, we'll keep digging

But, it's one of the most common problems so it's a good place to start.

As mentioned earlier, remove one of the air intake tubes and look down the little hole in the timing belt cover. Is the belt still there and look OK? That's an easy thing to check as well.

There are so many little things that can prevent the engine starting, just have to eliminate them as much as possible, starting with the easy ones.

88porsche928

jay67. its getting dark im going to wakl to the store to get batteries for the maglight brb