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Are Fuel Pressure Regulators no longer available?

HiSPL

Fanking Champion 1993
Joined
Jan 8, 2015
Location
College Station, TX
In doing other stuff tonight I found fuel in the vacuum side of my FPR. Went online and IPD only has an aftermarket brand and FCP doesn't even have one.

'88 244 NA.
 
I just ordered one made by Standard Motor Products on Rockauto. We'll see how it do.

I'm surprised you can't find the Bosch ones anymore. These were used on a bunch of cars.....
 
I just pocket PnP units


I'd take a used Bosch part over most aftermarket suppliers these days...
 
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'88 244 NA.
Might find one via these reference numbers: at your own risk

0280160225,
0280160292,
13006001101,
13053006101,
13531284796,
13531711540,
13531722039,
1357705,
3517063
758015,
==========
On ebay these days, there are scalpers....I have no idea what Porsche charges

94411019803 - New genuine Porsche Fuel Injection Pressure Regulator
US $354.52

Fuel Pressure Regulator - 1985-1986 Porsche 944 - SKP

$35.02
 
All this can be checked in the online parts catalog - as long as it's available - it's annoying that Volvo drops the PN's once something is NA, as it fucks with the historical record.

85-88 LH2.2 NA used the the 2.5bar regulator 3517063.
LH2.2 & 2.4 FT used 3bar 3517064
89-on LH2.4 used 3bar 3517064

Using the 3bar on the LH2.2 system should not make an appreciable difference to a otherwise well running system, IMO
 
...so having a touch of extra fuel can't hurt.
Using a pinch bigger injector on LH 2.4...Cold starts are great, but I have to rev up engine until O2 engages...about one minute of higher revs...2,000 or so. Fuel mixture is on the Rich side....

YMMV with LH 2.2...depending upon AMM/O2's fitness.
 
I got a Delphi replacement from FCP two-ish years ago and it failed on me last week. Swapped in the god knows how old OEM Bosch from the 760 and everything's fine again.
 
Put the new FPR in tonight. Did about a 10 mile drive and when I got home the car was running a bit rich. Turned the mixture screw a bit until it leaned out and it seems happy.

Not sure if its due to the extra pressure, or that this one is working properly and not leaking.
 
O2, MAF (AMM), and ECU's temp sensor must be fit. With LH 2.1, I used a high impedance automotive voltmeter to observe O2 sensor, which this meter can show average, now, and peak voltages.

ECU/ECMs I'm aware of have open and closed loop operations. On older vehicles, while in open loop, there may have been a rich mixture, but in closed loop the stoic mixture.

If a high impedance voltmeter is used to "see" O2 sensor voltage, I don't know what voltage would be observed, when in closed loop.

FWIW - It is STRONGLY advised that you replace your Oxygen Sensor before attempting AMM tuning
 
I don't know about all of that. It seems to me that I'm fine using the O2 sensor I already have. My AMM is NOS and fairly new. I now also have a new TPS too.

My lights go flashy flashy just fine after about a half turn of the screw to lean it out a bit. I could also tell by ear that the car was running a bit rich since I have a rowdy exhaust and I'm used to tuning motorcycle carbs by reading plugs and "feel". Once the mixture is good I will get some decel crackles happening and a little more rasp to the exhaust note. Running rich gives a mellower tone and little to no crackles.
 
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