I didnt check my partners car before i started i and he had parked it in gear. The car stalled and has not started since although it does fire. The error code is p1631. A mechanic has said that the fuel injection pump and control module need replacing but another has said it could be loose wiring. Has anyone any idea how i can check which it is without spending money on parts i might not need? thanks
{I think you meant 1998, not 7998}
Edited by Dynamic Dave on 07/05/2008 at 19:53
|
slee
That's a nasty code on one of these; it comes in several flavours, so getting it read with a dealer-level tool will reveal the exact failure from the additional sub-codes.
A high proportion of the time that you see any variant of P1631 it ends up needing a new pump. That's around £1700 at the dealers; or £900 for a re-con.
Given the circumstances of the fault; a thorough check of the wiring, fuses, relays and earths is worth the cost. Comparing the pump-speed data with the engine speed reading can also be useful.
|
thanks for the reply - will ask mechanic if he got sub codes. How would i get the pump speed data?
thanks again
|
The pump rotor speed is only one of many parameters displayed by a scanner's live-data.
Codes are only the beginning of diagnosis; analysis - and comprehension - of the live-data is the crucial part.
|
|
live data will give you pump speed, i am working on one of these at moment just pushed it in before coming home had same code usually means the pump is fubarred,so yu are not alone
|
|
not good news for the one at work, i condemmed the pump, £1663 +vat just for the pump, local diesel shop do a service exchange unit for £900 plus fitting, there is a guy on a well known internet site that sells them for about £500 but do not know what warranty you would get
|
|
|
|
i have been told the sub-code is that it is the third part. Is this consistent with pump failure requiring replacement?
Thanks for your time
|
|
sorry bit confused, if you have the code post it, and any description, and will go from there
Edited by topbloke on 12/05/2008 at 19:22
|
|
sorry for the confusion - a friend with a diagnostic kit had a look while i am waiting for the mechanic to do the work. The friend told me the error coming up was P1631 third part. I asked what the subcode was and he said "third part". Is this not a subcode? Thanks
|
|
no is the answer, i fitted a non genuine pump (service exchange) today to the one that i mention in ealier post and cured the fault, the diagnostic equipment should give a code p1631, a description critical malfuntion, and sometimes a sympton byte which is a code purely for tech's 21 short to ground
|
TB
My best guess at "third part" would be P1631 [3] - Comms error between IP control unit and engine ECU??
It's going to depend on what read it, to a large degree.
Edited by Screwloose on 13/05/2008 at 20:54
|
|
cheers for all replies - was a snap on that read it
|
I wasn't aware that a red brick could display sub-codes on one this early. They're normally very basic.
It's ones like Tech 2 and Vaux-Com that will nail the exact failure down.
|
|
|
|
|
