Recent content by 6=8

Wow... Thanks Dave! Your answer brings up a point I had not considered... The vacuum signal really needs to be checked on the same line going to the FPR, because if one were to have a vacuum leak on this line, it would cause all kinds of fuel pressure and driveability issues and may not even...

Interesting... Problem sounds familiar! How low can you go? When you are adjusting the FPR with the line off, can you dial it down to say, 20 PSI? (Only as a test!) If the return line is restricted, the FPR will not be able to lower the Fuel Pressure... Especially with a high-volume fuel...

Cable... More than anything else... It is probably the speedo-cable/or routing. If the insert/core of the cable was tweeked at any time, it causes internal friction which causes the slow down/speed up rotational changes as it rubs inside. This will result in fluctuations at the gage. Lube...

I need one!

There are 2 other failure "Points" in the charging circuit: The bulb socket contacts, and the cluster connection points (Connector/Flex circuit) My car had the resistor in the socket to prevent a burnt out bulb from causing charging issues, But I still had a failure here. The electrical contact...

It's cool when it works again, huh? I messed up early on and put a reg open y fitting on durign a vac line replacement effort, at a time when I also had a leaky set of headers (and had trouble seeing 10 PSI.) When I finally replaced the headers, I had a wicked overboost problem... Until I wised...

Sounds like if you can get it around 10, than this test is over! It would seem the pressure regulator and return line are fine. To completely rule out the regulator as a factor, there are a few other items you could try. A leaky vac line to the regulator, or a leaking diaphragm in the...

Here is a simple check to rule out an often overlooked problem: See how low you can dial your static fuel pressure. Just turn it down as low as you can as a test... I'm not recommending you to set it this low, only to check how low you can go. I believe at idle with the vacuum line on should be...

Weak pump OR a Restricted Supply Line, Filter, or Sock...

VadersV6: Like I said: Restricted fuel return line was a long shot for Frank718, but for me, it was not odd: It was my problem. I could not adjust my fuel pressure lower than 38 before I changed the return line, and now that I have, I can adjust it down below 20. These comparissons are using...

A Long Shot... Related to poor milage, my 170K mile relatively stock GN was getting very poor mileage. This was a gradual decrease in economy over time. I used to get 30 MPG on 95% highway driving, and 22-26 with mixed. Eventually (100K miles later) , I was getting 12 MPG with 160 miles per...

Hey there: I would vote against adding a "T" to the PCV line. Just get the new vacuum block with the port for the vacuum brake line, and put a hose clamp on EVERYTHING! (Kirbans, Johns Performance, etc...) Also, looking through the HELP section at autozone, I found an in-line filter that helps...

Agreed... When I first got my 87 and took in to the dealer to have a few things fixed, I asked if they could check the idle... Seemed a bit rough to me... The service manager kind of laughed and said "They set these cars up to run lean... nothing we can do about it." I thought it was a line...

I'm all in!

What does the ECM do when this condition is set? I know from searching that getting the open element filter out of the engine bay (Or cold-air ducting) will prevent this, however, does anyone know what ECM does with this sensor? Reduce timing, add EGR, limit boost, alter the fuel map? Just...