Engine Management Parts Cross Reference
by Tony Grasso
| Part | ||||||
|
Location |
Part ID |
Lotus Part Number |
GM Part Number |
Part # |
Note* |
Price** |
| Electric Control Module (ECM) w/o prom | ||||||
|
Above rhs fuel tank Note PROMS vary per model and year |
1228707 |
A910E7015 |
1228707 1228708 (weatherproof) |
1228707 1228708 |
1 |
- |
| Direct Ignition Module | ||||||
|
Right side wall engine bay |
Module:10498D13 0198;8343;8E06-01 |
A910E6940 (assembly-includes all 3 parts) |
10467214 10497771; 10472401; |
D1927A |
2 |
$217.26 |
|
High Tension Coils |
||||||
|
Right side wall engine bay (need 2) |
coil: 10497771 |
10477602 |
D555 |
3 |
$58.59 |
|
|
Mass Air Temperature (MAT) Sensor |
||||||
|
Non-SE: air filter airbox, under right fuel tank board SE: side of chargecooler housing |
AC 12v 1268 P.E.O. 62 |
A910E6927 |
25037334; 25036751 |
213-190 |
4 |
$37.00 |
|
Barometric (Baro) Pressure Sensor |
||||||
|
Metal plate above right hand rear wheel arch |
couldn't see due tolocation |
A910E6935 |
16006833 |
16006833 |
5 |
$68.75 |
|
Manifold Air Pressure (MAP) Sensor |
||||||
|
Metal plate above right hand rear wheel arch |
couldn't see due tolocation |
A910E6934 |
16009886 |
213-183 |
6 |
$85.00 |
|
Throttle Position Sensor (TPS) |
||||||
|
Rear end of throttle spindle #4 throttle body) |
80671 E0988 or 80671 E1709 |
A910E6961 |
17106680 |
547052 |
7 |
Unknown ($112.05 Lotus) |
|
Oxygen (Lambda) Sensor |
||||||
|
Exhaust outlet pipe after turbocharger before catalytic converter. |
3 wire leads+ground on sensor body. No other ID |
A910E0322 |
Bosch # 0 258 005 704 009 will work. PN on box 15704. Splice in or match up connector. |
8 |
$54.00 |
|
|
Flywheel Sensor |
||||||
|
Top of the clutch housing) |
no markings |
A910E6938 |
1103703 |
1103703 |
9 |
? |
|
Knock Sensor |
||||||
|
Cylinder block |
10456056 |
A910E6937 |
10456019 |
213-91 |
10 |
$65.50 |
|
Engine Coolant Temperature Sensor |
||||||
|
Inlet water jacket |
not legible (print too small!) |
A910E6928 |
Recommend Lotus |
unknown |
||
|
Idle Air Control (IAC) Valve |
||||||
|
Inlet manifold |
59523 A2398 or 59523 G1709- |
A910E6942 |
17111826 |
217-411 |
11 |
$95.75 ($96.57 Lotus) |
|
Fuel Pressure Regulator |
||||||
|
Rear end of fuel rail |
T44T or TA3T no other markings |
A910E6950 |
17112394 |
217-381 |
12 |
$113.00 |
|
Vacuum Pump |
||||||
|
Front of engine (Note revised harness cars have an electric pump in the old engine relay compartment) |
19308A |
A910E9027 |
7844039
7841443 |
215-106 or 215-103 |
13 |
$279.00
$202.00 |
|
Primary Fuel Injector |
||||||
|
Inlet manifold |
6039 5235364 0118 5235364 (Rochester Products numbers) |
A910E6941 |
Part Number SR 370 Source= RC Engineering (800) 525-4118 |
14 |
$57.00 each |
|
|
Secondary Injector (not on Non-SE Models) |
||||||
|
Intake Plenum |
6039 5235435 |
C910E7007F |
Lucas Saturated Type190cc/min- No part number- source= RC Engineering |
14 |
$168.00 |
|
|
Charcoal Canister |
||||||
|
Right rear engine bay |
numbers obscured |
A910E6944 |
easy match up when removed |
unknown |
||
|
Vehicle Speed Sensor (VSS) |
||||||
|
Right rear wheel hub |
not inspected |
A910E6939 |
Lotus factory part only. Not released to aftermarket |
|||
|
Frequency Valve - Wastegate Control |
||||||
|
Near turbo |
Delco Remy 1849138 |
A082M6420 |
Lotus factory parts only. Not released to aftermarket |
|||
|
Exhaust Back-Pressure Valve (EBV) Vacuum Capsule |
||||||
|
Exhaust pipe between catalytic converter and muffler |
Delco Remy |
A082M6421 |
||||
| Throttle Jacking Vacuum Capsule | ||||||
|
Top of engine near throttle linkage. |
1896068 |
A082M6421 |
||||
*Notes:
1. ECM (Preferable over Lotus sourced part)
These units are the OEM part numbers, with 1228708 as the preferred part due to its waterproof case. The only difference between the two is the case. Most original units can be remanufactured or used to satisfy the core charge on the replacement. Prices vary depending on source. ($150-$200)
2. DIRECT IGNITION MODULE (Preferable over Lotus part - they will only sell the complete coil pack!)
This was a match up by application to the multi-port ignition used by GM in its Pontiac Quad 4 engine.
3. HIGH TENSION COILS (These are exact OEM as used by Lotus)
Direct match GM part number on Lotus OEM part.
4. MAT (Preferable over Lotus sourced part, and cheaper too..Lotus part = $66.85)
This was a match up by application to the multiport ignition used by GM in its Pontiac Quad 4 engine.
5. BARO SENSOR (Preferable over Lotus sourced part, and cheaper too..Lotus part = $131.98)
Match up to GM part and GM application.
6. MAP SENSOR (Preferable over Lotus sourced part, and cheaper too..Lotus part = $167.81)
Match up to GM part and GM application.
7. TPS SENSOR ( Recommend Lotus sourced part…Lotus price = $112.05)
This was a match up by application to the multiport ignition used by GM in its Pontiac Quad 4 engine.
8. OXYGEN SENSOR (Preferable over Lotus sourced part, and much cheaper! Lotus price = $256.33)
These are pretty much generic match-ups. Bosch makes several which can be used. Just make sure the leads are long enough and that the
new sensor has 4 wires. You can either match up the old connector with a new connector and install, or splice the new sensor wires onto the old connector.
9. FLYWHEEL SENSOR (If obtainable using Delco number, would use Delco unless Lotus sourced price was comparable)
This was a match up by application to the multi-port ignition used by GM in its Pontiac Quad 4 engine.
10. KNOCK SENSOR (Preferable over Lotus sourced part unless Lotus price was comparable)
Match up to GM part and GM application.
11. IAC CONTROL VALVE (Recommend Lotus sourced part…Lotus price = $96.57)
Match up to GM part and GM application.
12. FUEL PRESSURE REGULATOR (Preferable over Lotus sourced part…Lotus price = $152.01)
Match up to GM part and GM application.
13. VACUUM PUMP (Preferable over Lotus sourced part)
The numbers given are close matches. These parts are being phased out due to obsolescence. Some modifications maybe required.
14. FUEL INJECTORS (Preferable over Lotus sourced part)
The originals are Delco made and flowed out for the Lotus. Originals can be obtained from Lotus at substantially more cost. The above RC equivalents are exact matches.
** Prices
Prices are as of March 2000 and are meant to be used as a guideline only.
A great thank you to Tony Grasso for researching and putting this cross-reference data together.