tholyoak

The negative values in RKAT (adaptation near idle) indicate the car is running rich and the DME is leaning out the mixture. The values >1 for FRA (adaptation under load, there should be a FRAO, upper load range and FRAU, lower load range as well) suggest that the car is leaning out under load and the DME is richening the mixture. These contrary indications and the 102 code suggest to me that your MAF is in need of replacement. As Loren states you can try to clean it and see what happens, but as Chris states this is probably just a temporary fix at best. The MAF is a consumable and needs replacement occasionally.

Todd

If it is a track car why not simply program the car with the ROW maps and it will ignore the post cat sensors that measure cat efficiency?

Hi Guys

I'm trying to T off the oil pressure sensor / sender to feed the inlet of the turbo. Does anyone know what kind the thread / pitch of the oil pressure sender? I haven't removed it yet, but would like to order the Metric to NPT adapter if anyone knows what it is. Thanks in advanced!

M14x1.5

Todd

You don't. If you don't return an identical core, you forfeit the core deposit so on a conversion the total engine cost is the cost of the motor + the cost of the core.

Todd

Hello Todd,

this is Mark with the 2000 boxster and I am doing the conversion to a 3.4 or probably 3.6.. You had written me in an e-mail that you have used new reman engines. I would like to do the same, but they want a core for pricing. How did you get around this? or will they accept a 2.7 litre engine core for a 3.6? How did you get around this core issue? Any ideas how I could get around it??

Ok, it took me a while to get around to this but here is the latest 3.4 996 engine swap document. Also for those not wanting to pay $1500 to have the DME redone, I can provide this service along with a new wire to add to the harness and instructions on calibrating the MAF to avoid running issues for $150 to contributing renntech members, $200 for non-contributing members.

Todd

According to the Boxster owner's manual, that position is used for the cruise control light in the Boxster 'S'. All of the other cars use the one in the speedo display.

Todd

Look on the flat plate next to the oil sump, there will be an engine type and serial number stamped there.

it will start with M96/......, this will tell you the year and engine type. The numbers you posted above are casting numbers not part numbers.

Based upon the coolant outlet configuration, the motor mount, the taller oil cooler and the fact there are no intermediate aluminum intake risers it is a 3.2L Boxster engine.

Todd

Oil level and temp sender are the same probe.

Don't take this the wrong way, but if you don't even know what the DME is you are probably in way over your head. Fitting a 3.6 to an early car is not a mechanical problem, it is purely electronics.

I have provided the details on how it can be done with either a piggy back controller or the factory way in several posts on this site, use the search function and you will find the details are there.

Todd

Just counter hold the motor from turning by placing a socket on the front pulley crank bolt.

You guys need to use the search feature. All these questions have been asked, and answered again and again.

In short, you can put any engine into any year car. It just changes the amount of work and parts that are needed to integrate it properly and retain all the factory functions. As Kanin states, if you are using a pre-7.8 DME car, you can use the 5.2.2 or 7.2 DME and a piggyback system, but to do it like a factory install you need the upgraded 7.8 DME and the other components necessary to make everything work together.

Todd

If you are going to do it, get the 3.8, it is the same money and the car will hold up fine. Issues with the later cars involve the PSM/ABS systems which I believe need to be upgraded when doing the conversion.

Todd

As we stated above, the CEL is a standard yellow, the OBC (dot matrix display) changes colour depending on the warning. The CEL, key in ignition, lights on etc, colour is yellow, the ABS waning, top open warning, seatbelt warning etc are all red.

Todd

ABS warning light will always come on when you dyno a car as the wheel sensors are telling the computer that the front wheels aren't moving while the rears are. I have no idea how this affects a tiptronic. On a manual car it is not an issues as the light clears as soon as you drive it.

Todd

I'm pretty sure the vibration on deceleration is due to the dual mass flywheel. I have had 3 boxsters, they all have done it. On my car I replaced the DMF with a LWF, everything else remained the same and the vibration is gone. I have never driven a new boxster so maybe it is deterioration of the dual mass unit with age, but my opinion is that it is definitely is a flywheel/clutch imbalance problem.

Todd

Things like idle speed, fuel trim, injector pulse length. The standard presets used in diagnosis. If you have the correct setpoint table from the factory service manual, the 996 OBDII manual would be perfectly fine. Just need to be aware of the slight differences between the two.

Todd

I can't really make sense of your post but the CEL itself is a yellow light, flashes when it is a problem that could damage the cats same as the earlier cars.

Now the dot matrix display can be in red or yellow depending on the message.

Todd

Could you PM me with the name of the shop. I am having some paint work done at the end of the month and want to make sure it isn't the same shop.

Sorry I can't help with the problem

Todd

It is just a fuel supply system. Except for the C4 in the USA, the DME does not regulate fuel pressure.

The factory just went to a returnless system for emissions. Thus, anyway you regulate the fuel pressure, as long as it is the correct pressure will work just fine. You can use the old fuel rail setup and the integrated FPR (just remove the vacuum connection as the later programming doesn't rely on reducing the fuel pressure under vacuum, just a constant 3.8 bar) or you can use the 997 returnless rails and fabricate some sort of aftermarket FPR or you can integrate the returnless system on the car which requires new fuel pump and level sending assembly.

Todd

While I eventually changed my car to the returnless fuel system, it isn't necessary.

Todd

The DME set-points are different between the 996 and 986 are different as well.

Todd

As stated, the 996 and 986 flywheels are not interchangeable.

Fidanza also doesn't make a LWFW for the 996, it was a misprint in their old catalog, it was a 993/964 part. The current catalog has been corrected and lists no boxster or 996 applications. I paid $800 including shipping for my Aasco flywheel which I think is reasonable. Just make sure to use a sprung disc with it and not the factory style solid disc made to work with the dual mass unit.

Todd

I believe it was mentioned early on to check your wiring connections before chasing something more complicated hmmm ;)

Fidanza doesn't make a LWF for the new cars. This is a misprint in their old catalogue the new catalogue doesn't list the 996. If you want a LWF get the Aasco unit. Do not use a stock unsprung disc with a LWF. Get an aftermarket sprung disc, you will have no noise and a solid disc is not made to work with a solid flywheel. I am happy with my Spec clutch setup. The new flywhee will come with a new pilot bearing and the clutch kit should come with a release bearing. Most would suggest to update to the newest RMS but personally if there are no signs of leaking I leave it alone, but then again I do all my own work so if it leaks at a later date it really is no big deal to me.

Todd

No, just the starter. The DME relay and injection relays are turned on before the starter lock relay. The output from the DME relay provides the low amp + input to the starter lock relay, the DME via the pedal switch controls the ground which actuates the closure of the high amp side of the relay sending current to the starter.

Check the fuses, it will take 5 seconds.

Todd

The clutch switch provides a ground signal to the DME, without it the starter relay will not be energized. If after checking the basics it all checks out, you need to hook it up to a pst and find out what the problem is.

Todd