My fuel pump install Pics !! Fuel filter o2 Sensors DENSO ! - Page 2 - ZR-1 Net Registry Forums

5ABI VT · 07-13-2015

First off just wanted to say thanks to everyone on this forum ! I always ask a ton of questions and this forum is simply the best. I figured the least I could do is share as much as possible (still working on the build thread lol)

Anyhow, few weeks ago I was driving at about 10mph off throttle coasting to a stop with traffic. had my music on and saw all my engine wrning lights pop on. I glanced at my gages and they were all within the norm and when I shut the music off I realized the car had turned off. The Only other time I have experienced this was in my old m3, and it happened 2 more times before it finally crapped out and refused to start. SO I figured the car is 21 years old.. fuel pump time !!

After searching and reading all I could there were a few good write ups and Im very appreciative for them being there so hats off to you guys who have posted excellent photos and info !

At first I chose to go with the Bosch. I had no issue modifying the housings etc but I ended up ordering the wrong part number. These were the bosch pumps..

The Bosch did come with the metal clamps that everyone suggested.

I realized I had the wrong part numbers 69223 where it should have been 69225. When I sent them back I noticed that Denso had pumps available. Ill admit Im a bit of a Denso fan. have bought many Denso parts for various cars over the years and had nothing but success with them. I emailed Denso about the pumps and even got a reply within a day. They claimed their pumps were superior and as listed under their description balanced at multiple speeds etc and were turbine style etc etc. I was sold. Plus they Guaranteed 100% fitment which made me feel more comfortable.

I later ordered 2 Denso O2 sensors as well since I Have some popping under deccel and I have no idea what the age was of the current o2s and I don't have a reader for obd1 to see how responsive they were I figured why not change them too, along with a fuel filter. Notice the pumps say 'first time fit' right right on the box !

First off I would suggest anyone doing the pumps to just get some o rings for the pump to tank bolts. almost every single one of mine torn or was in bad shape. Unavailable from GM but a local auto parts supply had a bunch of them. They looked like this :

For me, taking the pump out was the hardest part because I couldn't see the bottom of the unit to see its shape but some gently twisting and pulling and holding the float arm close and it was out in about a minute.

The socks were pitch black which is normal I guess and leads me to believe they are original? I also noticed the socks are a different length for the primary and secondary. something I may not have noticed in other write ups but thought id mention it here.

07-13-2015	#1
5ABI VT Join Date: Jun 2013 Location: Toronto Posts: 782	My fuel pump install Pics !! Fuel filter o2 Sensors DENSO ! First off just wanted to say thanks to everyone on this forum ! I always ask a ton of questions and this forum is simply the best. I figured the least I could do is share as much as possible (still working on the build thread lol) Anyhow, few weeks ago I was driving at about 10mph off throttle coasting to a stop with traffic. had my music on and saw all my engine wrning lights pop on. I glanced at my gages and they were all within the norm and when I shut the music off I realized the car had turned off. The Only other time I have experienced this was in my old m3, and it happened 2 more times before it finally crapped out and refused to start. SO I figured the car is 21 years old.. fuel pump time !! After searching and reading all I could there were a few good write ups and Im very appreciative for them being there so hats off to you guys who have posted excellent photos and info ! At first I chose to go with the Bosch. I had no issue modifying the housings etc but I ended up ordering the wrong part number. These were the bosch pumps.. The Bosch did come with the metal clamps that everyone suggested. I realized I had the wrong part numbers 69223 where it should have been 69225. When I sent them back I noticed that Denso had pumps available. Ill admit Im a bit of a Denso fan. have bought many Denso parts for various cars over the years and had nothing but success with them. I emailed Denso about the pumps and even got a reply within a day. They claimed their pumps were superior and as listed under their description balanced at multiple speeds etc and were turbine style etc etc. I was sold. Plus they Guaranteed 100% fitment which made me feel more comfortable. I later ordered 2 Denso O2 sensors as well since I Have some popping under deccel and I have no idea what the age was of the current o2s and I don't have a reader for obd1 to see how responsive they were I figured why not change them too, along with a fuel filter. Notice the pumps say 'first time fit' right right on the box ! First off I would suggest anyone doing the pumps to just get some o rings for the pump to tank bolts. almost every single one of mine torn or was in bad shape. Unavailable from GM but a local auto parts supply had a bunch of them. They looked like this : For me, taking the pump out was the hardest part because I couldn't see the bottom of the unit to see its shape but some gently twisting and pulling and holding the float arm close and it was out in about a minute. The socks were pitch black which is normal I guess and leads me to believe they are original? I also noticed the socks are a different length for the primary and secondary. something I may not have noticed in other write ups but thought id mention it here.