Loren

Yes, that cluster should work (providing the cluster itself works). There have been a few bad clusters sold on eBay - so beware. You should check out this DIY (if you haven't already seen it) Carrera Instrument Cluster Transplant To Boxster

P0133 Signal Period for Oxygen Sensor Ageing, Bank 1 – Above/Below Limit The diagnosis of "oxygen sensor aging" helps to identify oxygen sensors ahead of TWC that lead to emission limits being exceeded because of aging. During the diagnosis of oxygen sensor aging, the DME control module monitors the period (oscillating frequency) of the sensor signal. With an old sensor, the duration of the period is too long, i.e. it is more difficult for the sensor to diffuse oxygen into the exhaust gas. Reasons for this could be frequent driving in the lower load range (city driving, short distances, etc.) or a contaminated sensor. If it comes back you likely need to replace that O2 sensor. Most O2 sensors age beyond spec or fail after 60,000 plus miles.

Yes, it would appear from the schematic that the alternator is grounded through the chassis.

To charge the battery it has to go through that 8 plug socket on the engine and have a good ground that it the same ground as the battery.

I asked you to please post this in the thread that has already been started - we do not need 400 lost radio code threads. Try 4922 or 4920 This topic is closed.

What is the part number on the cluster? (Let's make sure it will work in your wife's car)

Welcome... but please look for existing posts on the subject before you start a new thread. There is already a post on Lost Radio Codes here. That thread will also tell you how to get your radio serial number - which is needed to guess your code. I am closing this topic - please post your request with serial number in the Lost Radio Code topic - thanks.

Well, that would depend if there is a new fault code or the same one. If it is the same fault code then I would start looking at wiring/connectors. If it is a different code then we need to know what that is.

If the MAF is bad then the readings it is giving the DME are bad. So the fuel - air mixture will be bad at high RPM. You can disconnect the MAF and drive around all day and never feel a difference - as long as you stay under 4500-5000 RPM.

Are you sure your fan is bad? There have been a number of reports here where folks found weather stripping or something else hitting the fan. Do a search here to find more...

Electric fan, speed 1 Coolant temperature higher than 96.75° C or air conditioning switched on. Electric fan, speed 2 Coolant temperature > 102° C or air-conditioning fluid pressure switch closed (coolant pressure > 16 bar). The electric fans for the radiators are only triggered when the engine is running.

Yes, unless there are spacers on the car.

Most of that is in the model year specific Technical Service books. You always need the first model year of each book as they give detail of just about everything new to the car. After that the next years book just lists changes from the previous year. Too my knowledge they all turn off at the same RPM including VarioCamPlus. Porsche calls resonance/crossover "boost" - the Resonance Flap. I don't have detail on early the Boxster (perhaps Tool Pants has a MY97 Boxster Tech Book) but on 3.4 liter Carrera it works like this: "An intake system divided by a resonance flap allows utilization of oscillations along the intake air column across a broad speed range (resonance supercharging). Due to the different working cycles of the individual cylinders, air is drawn from both reservoirs in the intake system alternately. The mass air flow in the intake system is excited by the alternating induction. In the case of resonance, the intake frequency of a cylinder line matches the frequency of the compressive oscillations in the pertaining reservoir. This frequency is determined by the geometry of the intake pipe, the resonance pipe, and the reservoirs. However, the overall length of the pipes from the intake cylinder to the subsequent intake cylinder, the division within the intake and resonance pipes as well as the reservoir depth in the flow direction are the deciding factors. The DME control unit activates a diaphragm valve controlled by negative pressure. This valve opens or closes the resonance flap. The resonance flap is closed when de-energized, but is actuated and open whenever the ignition is switched on. If, after the starting process, the engine reaches the programmed idle speed, the resonance flap is closed again. Switching points of the resonance flap: Resonance flap not actuated between 700 rpm and 3,120 rpm and from 5,120 rpm. Resonance flap actuated between 3,120 and 5,120 rpm, if the throttle is open by more than 30%."

When it rains... does the alternator get wet? Do other parts of the engine compartment get wet? I would certainly also check the 8 plug socket on the engine (current distribution) - since all the current distribution goes through there.

:welcome: P1349 Camshaft Adjustment, Bank 1 – Below Limit Solenoid hydraulic valve is triggered, camshaft does not switch into early position. Possible fault cause: - Dirt in system - Solenoid hydraulic valve mechanically blocked

:welcome: Take the distributor cap off and turn the engine until the rotor points at cylinder 1. If you are at TDC then the mark on the pulley will be at 12 o'clock, the next mark will be at 4 o'clock and the last mark will be at 8 o'clock.

Loren, did you have a hard time getting the plate and the braces back on? I changed my transmission oil today (2003 Boxster S) and was surprised how hard it was to get the holes to line up with the studs, for both the plate and the braces. I was worried that I had pulled it out of alignment by using ramps instead of jack stands. But looking at your photos, you used ramps too. Wondering if you had any alignment problems after doing this? Thanks I didn't do these - member schreb did. As I recall it might take a little pushing to get them back in place.

I think if the Variocam were not working right you would get poor torque in the mid-range. The MAF is critical for high RPM since it measures the air flow.

VarioCam is deactivated at 5120 RPM. I think he has a bad MAF.

Great Job! Thanks.

If the only thing you get out of PCA is the magazine (Panorama) - it is well worth it (IMHO). Other benefits (depending on your needs) are: Discounts for parts and service (at dealer discretion) Driving schools Autocross Ralley The yearly Porsche Parade event Technical Sessions Club Racing Valuation committee to help you establish the value of your Porsche for insurance purposes. all events (even tech sessions) are covered by PCA's insurance and many more I am sure someone else can think of. I have been a member for 29 years and I never been able to do all the events but I have enjoyed many of the one's I have attended.

Yes, they are the same for all four wheels. There is a different part number for MY03 and newer as well as C4S.

"after-market spoiler" - I think you will need to talk to the spoiler manufacturer.

How To Replace Rubber Bellows Under 996 Rear Spoiler

For a MY99... 14FGR 6KQU