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Thanks - I will try it this week. I am reading many of the posts here right now, as my 98 Boxster has a slight problem: After engine is fully hot (>180F) it shows heavy hesitation and stumble when accelerating below 2000 rpm. Slight acceleration is fine, but pushing the throttle more (or suddenly) will cause the engine to caugh, hesitate, almost like misfire. Above 2000rpm everything is fine. Have checked and cleaned throttle body + ICV. Have replaced MAF (Bosch). Checked spark plugs on left bank - all fine. Planning to double check all plugs and coils (thats why my question). OBD codes do not give any faults (besides the secondary air codes which I have since last year). Problem occured only in the last few weeks. Would you have any ideas what to look for ? Perhaps I should start a new topic...
OK, it is me again - I am obviously following this topic closely. When accelerating in 3/4/5 gear at low rpm (1200 - 1800), the engine hesitates, coughs, does not accelerate smoothly. No problems with rough idle, and no problems driving over 2000 rpm. I took out and cleaned the throttle body yesterday, checked the ICV and cleaned it - the barrel moved freely. There was a little bit oil behind the throttle, I guess that is coming from the crank case ventilation and should be normal? Next, I filled up the tank today with fresh gas, after runnning it low. Then I added 3/4 bottle of carburatur / injection cleaner - hoping to clean out any water or dirt from the fuel system. Also, I checked and cleaned the MAF, it is almost brand new (BOSCH part), as I replaced it during the winter. To double check if false MAF reading is the cause, I detached the MAF wires, and drove the car for 10 min with detached MAF plug. The problem was still there... Going to see if the injections sytem cleaner will help as I am burning the tank in the next days... Any other suggestions where to look?
I have most likely the same problem. My car is a 1998 Boxster 2.5L manual. I noticed a few hickups in low rpm's when changing from deceleration or idle to acceleration. Typical at stop-and-go traffic. Have not noticed any problems above 3000 rpm, only in accel from low rpm's. I am thinking I will try a cleaning of the throttle and CIV and see if this helps.
Hi, I just installed 997 seats (from a 2007 carrera) into my 1998 Boxster.Tried forever to get the memory box to work, even with a full wiring diagram downloaded at Alldata.com, but did not work.I ended up re-wiring the switches, and bypassing the memory module.Email me if you need a step-by-step description: email@example.comJ. Follow-up, May 29/2013: As I have received many emails from guys all over this world in the last years - I wanted to let you know that the steps I did to fit my seats were posted at the website of Pelican parts. Here is the direct link: http://www.pelicanparts.com/techarticles/box_997_seats/box_997_seats.htm Good luck!
Hi, I am new here - looking for the wiring connection to the memory CPU of a 997 seat. The picture Ken has posted shows this memory CPU (black box) right in the center. Does anyone have information about the electrical connections going into this box? I need to power the main plug on the front left side. 3 large pins, and a few small pins. Which is getting what signal ...? Thanks for any help. Jan