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Discussion Starter #1
HI All,
more help needed, after changing ECU, OVP,fuel pumps,filters,MAF, coils,spark plugs,finally got engine started ,but starts right up, revs go up to 2000 for a few seconds then dies, if I tickle the throttle, I can keep it running at about 1500revs, seems better when she gets warm, but still if you take your foot off gas it will cut out,
any suggestions please,
 

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2003 G500, 2000 SL500, 1995 E320 Cabriolet, 1980 TR8
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1,066 Posts
Just a few suggestions . . .

Engine wiring harness - check the manufacture date (on the harness label near the battery and where the harness connects to the ECU); a degraded ecco junk harness can cause all sorts of issues. If the date is pre 1998, all bets are off until the harness is replaced.

Throttle Body Adapter (TBA) - suffers from the same eco junk issue as the engine harness (and the entire car for that matter). Build date must be post 1998 (on the label affixed to the TBA). This item is often neglected as the TBAs seem to last longer than the engine harnesses.

ECU not coded correctly - The replacement ECU may not be coded correctly. In general, coding for US ECUs should be the same except for ASR option so you may have a non ASR ECU trying to function in an ASR car or vice versa (note, suspect the ECU only after the ecco junk issues have been dealt with).
 

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Registered
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Discussion Starter #3
Just a few suggestions . . .

Engine wiring harness - check the manufacture date (on the harness label near the battery and where the harness connects to the ECU); a degraded ecco junk harness can cause all sorts of issues. If the date is pre 1998, all bets are off until the harness is replaced.

Throttle Body Adapter (TBA) - suffers from the same eco junk issue as the engine harness (and the entire car for that matter). Build date must be post 1998 (on the label affixed to the TBA). This item is often neglected as the TBAs seem to last longer than the engine harnesses.

ECU not coded correctly - The replacement ECU may not be coded correctly. In general, coding for US ECUs should be the same except for ASR option so you may have a non ASR ECU trying to function in an ASR car or vice versa (note, suspect the ECU only after the ecco junk issues have been dealt with).
Hi,
Sorry forgot to mention, that I replaced the wiring harness with a latter one
 
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